#011228

Closest named color: Rich Navy (#001219). oklch(18.1% 0.052 252.9), rgb(1, 18, 40).

Aa

White text reads best on this color (18.77:1).

About this color

#011228 is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.052 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.032 away. White text reads best on it, at 18.77:1.

Hue familyBlues
Lightnessvery dark (18%)
Chromamuted (0.052)
Temperaturecool
Nearest nameRich Navy (#001219)
Black text1.11:1
White text18.77:1

Values

HEX#011228
RGBrgb(1, 18, 40)
HSLhsl(214, 95%, 8%)
OKLCHoklch(18.1% 0.052 252.9)

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 #011228 18.77:1 AAA Lc -107.2 Preferred for body text
Black text on #011228 1.11:1 Fails Lc 0.0 Not readable
#011228 text on white 18.77:1 AAA Lc 105.1 Preferred for body text
#011228 text on black 1.11:1 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

    #F2F6FB

    oklch(97.2% 0.008 253.9)

  2. Step 100

    100

    #E2EBF6

    oklch(93.7% 0.018 253.3)

  3. Step 200

    200

    #CADBF0

    oklch(88.5% 0.034 253.7)

  4. Step 300

    300

    #A5C4E8

    oklch(81% 0.061 252.4)

  5. Step 400

    400

    #73A4DD

    oklch(70.7% 0.099 252.9)

  6. Step 500

    500

    #4D8CD3

    oklch(63% 0.126 252.9)

  7. Step 600

    600

    #2E75C1

    oklch(55.6% 0.138 252.9)

  8. Step 700

    700

    #2062A6

    oklch(49.1% 0.127 252.6)

  9. Step 800

    800

    #1D5087

    oklch(42.7% 0.106 253)

  10. Step 900

    900

    #1E436C

    oklch(37.7% 0.082 252.9)

  11. Step 950

    950 (this color)

    #011228

    oklch(18.1% 0.052 252.9)

Export this scale for Tailwind in the Tailwind colors tool

#011228 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)#0714290.014
Deuteranopia (no green cones)#0210280.007
Tritanopia (no blue cones)#00171A0.039
Achromatopsia (no color)#1212120.052

Harmonies

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

Complementary

The opposite hue (180°).

  • #011228

    #011228

    oklch(18.1% 0.052 252.9)

  • #1C0F00

    #1C0F00

    oklch(18.2% 0.039 74.2)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #011228

    #011228

    oklch(18.1% 0.052 252.9)

  • #00151D

    #00151D

    oklch(18.2% 0.034 223.7)

  • #0F0E28

    #0F0E28

    oklch(18.2% 0.052 281.7)

Open the analogous palette in the generator

Split complementary

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

  • #011228

    #011228

    oklch(18.1% 0.052 252.9)

  • #240800

    #240800

    oklch(18.2% 0.053 44)

  • #151200

    #151200

    oklch(18% 0.038 102.1)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #011228

    #011228

    oklch(18.1% 0.052 252.9)

  • #24060B

    #24060B

    oklch(18.1% 0.052 13.1)

  • #081600

    #081600

    oklch(18% 0.051 133.1)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #011228

    #011228

    oklch(18.1% 0.052 252.9)

  • #210718

    #210718

    oklch(18.2% 0.052 343.2)

  • #1C0F00

    #1C0F00

    oklch(18.2% 0.039 74.2)

  • #00170D

    #00170D

    oklch(18.1% 0.039 163.7)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #011228, closest first.

Similar named colors

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

Use #011228 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.