#001C09

Closest named color: Rich Navy (#001219). oklch(19.8% 0.052 152.1), rgb(0, 28, 9).

Aa

White text reads best on this color (17.94:1).

About this color

#001C09 is a very dark, muted green. In OKLCH its lightness is 20%, its chroma 0.052 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.059 away. White text reads best on it, at 17.94:1.

Hue familyGreens
Lightnessvery dark (20%)
Chromamuted (0.052)
Temperaturein between
Nearest nameRich Navy (#001219)
Black text1.17:1
White text17.94:1

Values

HEX#001C09
RGBrgb(0, 28, 9)
HSLhsl(139, 100%, 5%)
OKLCHoklch(19.8% 0.052 152.1)

Contrast

WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.

PairWCAG 2ResultAPCAAPCA guidance
White text on #001C09 17.94:1 AAA Lc -106.7 Preferred for body text
Black text on #001C09 1.17:1 Fails Lc 0.0 Not readable
#001C09 text on white 17.94:1 AAA Lc 104.5 Preferred for body text
#001C09 text on black 1.17:1 Fails Lc 0.0 Not readable

Tints and shades

A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.

  1. Step 50

    50

    #F2F7F3

    oklch(97.1% 0.007 151.9)

  2. Step 100

    100

    #E2EDE4

    oklch(93.5% 0.017 151.1)

  3. Step 200

    200

    #C9E0CE

    oklch(88.5% 0.035 152)

  4. Step 300

    300

    #A4CDAD

    oklch(81% 0.062 151.4)

  5. Step 400

    400

    #6FB282

    oklch(70.6% 0.098 152.3)

  6. Step 500

    500

    #449F62

    oklch(63.1% 0.127 151.9)

  7. Step 600

    600

    #198949

    oklch(55.5% 0.137 152.2)

  8. Step 700

    700

    #04743A

    oklch(49% 0.127 152.1)

  9. Step 800

    800

    #0E5F30

    oklch(42.8% 0.106 151.9)

  10. Step 900

    900

    #174E2B

    oklch(37.8% 0.083 152.1)

  11. Step 950

    950 (this color)

    #001C09

    oklch(19.8% 0.052 152.1)

Export this scale for Tailwind in the Tailwind colors tool

#001C09 with color blindness

Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.

VisionSeen asShift (ΔE)
Protanopia (no red cones)#1C18080.045
Deuteranopia (no green cones)#18160A0.042
Tritanopia (no blue cones)#001B180.030
Achromatopsia (no color)#1717170.052

Harmonies

Hue rotations in OKLCH that keep this color's lightness and chroma.

Complementary

The opposite hue (180°).

  • #001C09

    #001C09

    oklch(19.8% 0.052 152.1)

  • #230B20

    #230B20

    oklch(19.8% 0.053 332.3)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #001C09

    #001C09

    oklch(19.8% 0.052 152.1)

  • #121900

    #121900

    oklch(19.9% 0.049 122.5)

  • #001B17

    #001B17

    oklch(19.9% 0.036 181.9)

Open the analogous palette in the generator

Split complementary

The two hues beside the complement (150° and 210°).

  • #001C09

    #001C09

    oklch(19.8% 0.052 152.1)

  • #1A0F29

    #1A0F29

    oklch(19.9% 0.052 301.4)

  • #280A14

    #280A14

    oklch(20% 0.052 2.2)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #001C09

    #001C09

    oklch(19.8% 0.052 152.1)

  • #0E132D

    #0E132D

    oklch(19.8% 0.052 272.6)

  • #290B06

    #290B06

    oklch(19.9% 0.052 32.5)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #001C09

    #001C09

    oklch(19.8% 0.052 152.1)

  • #001829

    #001829

    oklch(20% 0.047 241.2)

  • #230B20

    #230B20

    oklch(19.8% 0.053 332.3)

  • #241000

    #241000

    oklch(19.9% 0.046 61.8)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #001C09, closest first.

Similar named colors

The eight closest entries in our named color list, with their ΔE distance.

Use #001C09 in your product

Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.