#00191E
Closest named color: Rich Navy (#001219). oklch(19.6% 0.034 212), rgb(0, 25, 30).
Aa
White text reads best on this color (18.13:1).
About this color
#00191E is a very dark, muted teal or cyan. In OKLCH its lightness is 20%, its chroma 0.034 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.028 away. White text reads best on it, at 18.13:1.
| Hue family | Teals and cyans |
| Lightness | very dark (20%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.15:1 |
| White text | 18.13:1 |
Values
| HEX | #00191E |
| RGB | rgb(0, 25, 30) |
| HSL | hsl(190, 100%, 6%) |
| OKLCH | oklch(19.6% 0.034 212) |
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.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #00191E | 18.13:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #00191E | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #00191E text on white | 18.13:1 | AAA | Lc 104.7 | Preferred for body text |
| #00191E text on black | 1.15:1 | 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.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#C9DDE2
oklch(88.4% 0.022 214.4)
-
Step 300
300
#A4C8D0
oklch(80.9% 0.04 212.7)
-
Step 400
400
#70ACB8
oklch(70.8% 0.064 211.6)
-
Step 500
500
#4497A7
oklch(63.2% 0.083 212.1)
-
Step 600
600
#1C8192
oklch(55.6% 0.09 212)
-
Step 700
700
#086D7C
oklch(49.1% 0.084 211.6)
-
Step 800
800
#105965
oklch(42.8% 0.069 211.7)
-
Step 900
900
#184952
oklch(37.7% 0.054 211.9)
-
Step 950
950 (this color)
#00191E
oklch(19.6% 0.034 212)
#00191E 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.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #15181E | 0.031 |
| Deuteranopia (no green cones) | #11141E | 0.030 |
| Tritanopia (no blue cones) | #001B1B | 0.012 |
| Achromatopsia (no color) | #161616 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00191E
#00191E
oklch(19.6% 0.034 212)
- #220F0B
#220F0B
oklch(19.5% 0.033 32.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #00191E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.028
- Rich Black #0D1B2A ΔE 0.032
- Almost Black #070D0D ΔE 0.050
- Dark #1B2431 ΔE 0.067
- Jet #212529 ΔE 0.072
- Oxford Blue #1B263B ΔE 0.081
- Navy Blue #001146 ΔE 0.086
- Dark Navy #000435 ΔE 0.087
Use #00191E 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.