#042D2B
Closest named color: Jet (#212529). oklch(27% 0.043 190), rgb(4, 45, 43).
Aa
White text reads best on this color (14.83:1).
About this color
#042D2B is a dark, muted teal or cyan. In OKLCH its lightness is 27%, its chroma 0.043 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Jet (#212529), ΔE 0.040 away. White text reads best on it, at 14.83:1.
| Hue family | Teals and cyans |
| Lightness | dark (27%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Jet (#212529) |
| Black text | 1.41:1 |
| White text | 14.83:1 |
Values
| HEX | #042D2B |
| RGB | rgb(4, 45, 43) |
| HSL | hsl(177, 84%, 10%) |
| OKLCH | oklch(27% 0.043 190) |
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 #042D2B | 14.83:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #042D2B | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #042D2B text on white | 14.83:1 | AAA | Lc 101.5 | Preferred for body text |
| #042D2B text on black | 1.41:1 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#DFEDEC
oklch(93.5% 0.015 191.8)
-
Step 200
200
#C5E0DD
oklch(88.6% 0.029 188.5)
-
Step 300
300
#9BCCC8
oklch(81% 0.051 190)
-
Step 400
400
#5DB1AC
oklch(70.6% 0.082 190.4)
-
Step 500
500
#169D98
oklch(63% 0.105 190.7)
-
Step 600
600
#008580
oklch(55.7% 0.096 190.1)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
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)
#042D2B
oklch(27% 0.043 190)
#042D2B 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) | #2A2A2B | 0.046 |
| Deuteranopia (no green cones) | #24262B | 0.043 |
| Tritanopia (no blue cones) | #002F2C | 0.007 |
| Achromatopsia (no color) | #282828 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #042D2B
#042D2B
oklch(27% 0.043 190)
- #381D21
#381D21
oklch(26.9% 0.043 10.8)
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 #042D2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.040
- Dark #1B2431 ΔE 0.043
- Oxford Blue #1B263B ΔE 0.051
- Dark Forest Green #002D04 ΔE 0.062
- Very Dark Green #062E03 ΔE 0.063
- Gunmetal #293241 ΔE 0.063
- Pakistan Green #283618 ΔE 0.065
- Rich Black #0D1B2A ΔE 0.066
Use #042D2B 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.