#04312F
Closest named color: Jet (#212529). oklch(28.4% 0.046 190.3), rgb(4, 49, 47).
Aa
White text reads best on this color (14.13:1).
About this color
#04312F is a dark, muted teal or cyan. In OKLCH its lightness is 28%, its chroma 0.046 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Jet (#212529), ΔE 0.047 away. White text reads best on it, at 14.13:1.
| Hue family | Teals and cyans |
| Lightness | dark (28%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Jet (#212529) |
| Black text | 1.48:1 |
| White text | 14.13:1 |
Values
| HEX | #04312F |
| RGB | rgb(4, 49, 47) |
| HSL | hsl(177, 85%, 10%) |
| OKLCH | oklch(28.4% 0.046 190.3) |
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 #04312F | 14.13:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #04312F | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #04312F text on white | 14.13:1 | AAA | Lc 100.6 | Preferred for body text |
| #04312F text on black | 1.48:1 | 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
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DFEDEC
oklch(93.5% 0.015 191.8)
-
Step 200
200
#C3E0DE
oklch(88.5% 0.031 191.5)
-
Step 300
300
#98CCC9
oklch(80.8% 0.054 191.7)
-
Step 400
400
#57B2AD
oklch(70.7% 0.087 190.6)
-
Step 500
500
#009E98
oklch(63.1% 0.109 190)
-
Step 600
600
#008580
oklch(55.7% 0.096 190.1)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
Step 800
800
#005C58
oklch(42.8% 0.074 189.6)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950 (this color)
#04312F
oklch(28.4% 0.046 190.3)
#04312F 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) | #2D2E2F | 0.048 |
| Deuteranopia (no green cones) | #27292F | 0.046 |
| Tritanopia (no blue cones) | #003330 | 0.007 |
| Achromatopsia (no color) | #2B2B2B | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04312F
#04312F
oklch(28.4% 0.046 190.3)
- #3D2024
#3D2024
oklch(28.4% 0.045 11.5)
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 #04312F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.047
- Dark #1B2431 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.054
- Gunmetal #293241 ΔE 0.055
- Midnight Green #073B4C ΔE 0.057
- Pakistan Green #283618 ΔE 0.058
- Space Cadet #2B2D42 ΔE 0.063
- Very Dark Green #062E03 ΔE 0.066
Use #04312F 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.