#042B24
Closest named color: Jet (#212529). oklch(26% 0.044 177.9), rgb(4, 43, 36).
Aa
White text reads best on this color (15.25:1).
About this color
#042B24 is a dark, muted teal or cyan. In OKLCH its lightness is 26%, its chroma 0.044 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Jet (#212529), ΔE 0.042 away. White text reads best on it, at 15.25:1.
| Hue family | Teals and cyans |
| Lightness | dark (26%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Jet (#212529) |
| Black text | 1.37:1 |
| White text | 15.25:1 |
Values
| HEX | #042B24 |
| RGB | rgb(4, 43, 36) |
| HSL | hsl(169, 83%, 9%) |
| OKLCH | oklch(26% 0.044 177.9) |
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.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #042B24 | 15.25:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #042B24 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #042B24 text on white | 15.25:1 | AAA | Lc 102.0 | Preferred for body text |
| #042B24 text on black | 1.37:1 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E0EDEA
oklch(93.6% 0.014 180.7)
-
Step 200
200
#C6E0D9
oklch(88.6% 0.029 177.6)
-
Step 300
300
#9DCCC0
oklch(80.9% 0.052 177.5)
-
Step 400
400
#61B2A0
oklch(70.7% 0.085 177.6)
-
Step 500
500
#249E89
oklch(63% 0.107 177.9)
-
Step 600
600
#008673
oklch(55.5% 0.102 178.1)
-
Step 700
700
#007161
oklch(49.1% 0.09 178.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#004D41
oklch(37.6% 0.069 177.7)
-
Step 950
950 (this color)
#042B24
oklch(26% 0.044 177.9)
#042B24 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) | #292824 | 0.047 |
| Deuteranopia (no green cones) | #232425 | 0.044 |
| Tritanopia (no blue cones) | #002C29 | 0.009 |
| Achromatopsia (no color) | #252525 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #042B24
#042B24
oklch(26% 0.044 177.9)
- #351A24
#351A24
oklch(25.9% 0.045 357.1)
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 #042B24, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.042
- Dark #1B2431 ΔE 0.048
- Dark Forest Green #002D04 ΔE 0.052
- Very Dark Green #062E03 ΔE 0.053
- Oxford Blue #1B263B ΔE 0.059
- Rich Black #0D1B2A ΔE 0.064
- Pakistan Green #283618 ΔE 0.066
- Gunmetal #293241 ΔE 0.075
Use #042B24 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.