#00191A
Closest named color: Rich Navy (#001219). oklch(19.4% 0.033 198.3), rgb(0, 25, 26).
Aa
White text reads best on this color (18.19:1).
About this color
#00191A is a very dark, muted teal or cyan. In OKLCH its lightness is 19%, its chroma 0.033 and its hue 198°. 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 18.19:1.
| Hue family | Teals and cyans |
| Lightness | very dark (19%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.15:1 |
| White text | 18.19:1 |
Values
| HEX | #00191A |
| RGB | rgb(0, 25, 26) |
| HSL | hsl(182, 100%, 5%) |
| OKLCH | oklch(19.4% 0.033 198.3) |
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 #00191A | 18.19:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #00191A | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #00191A text on white | 18.19:1 | AAA | Lc 104.7 | Preferred for body text |
| #00191A 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
#F2F7F7
oklch(97.2% 0.005 197.1)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CADEDE
oklch(88.6% 0.021 196.8)
-
Step 300
300
#A4C9CA
oklch(80.9% 0.039 198.4)
-
Step 400
400
#71ADAF
oklch(70.7% 0.062 198.5)
-
Step 500
500
#46989B
oklch(63% 0.08 198.6)
-
Step 600
600
#1F8386
oklch(55.7% 0.087 198)
-
Step 700
700
#0C6E71
oklch(49% 0.081 198.3)
-
Step 800
800
#125A5C
oklch(42.7% 0.067 197.8)
-
Step 900
900
#194A4C
oklch(37.7% 0.052 199)
-
Step 950
950 (this color)
#00191A
oklch(19.4% 0.033 198.3)
#00191A 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) | #16171A | 0.034 |
| Deuteranopia (no green cones) | #12141A | 0.032 |
| Tritanopia (no blue cones) | #001A19 | 0.005 |
| Achromatopsia (no color) | #151515 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00191A
#00191A
oklch(19.4% 0.033 198.3)
- #210E0F
#210E0F
oklch(19.3% 0.032 17.2)
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 #00191A, 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 0.039
- Almost Black #070D0D ΔE 0.047
- Dark #1B2431 ΔE 0.071
- Jet #212529 ΔE 0.074
- Oxford Blue #1B263B ΔE 0.086
- Dark Navy #000435 ΔE 0.094
- Navy Blue #001146 ΔE 0.094
Use #00191A 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.