#042E2B
Closest named color: Jet (#212529). oklch(27.3% 0.044 187.7), rgb(4, 46, 43).
Aa
White text reads best on this color (14.67:1).
About this color
#042E2B is a dark, muted teal or cyan. In OKLCH its lightness is 27%, its chroma 0.044 and its hue 188°. 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 14.67:1.
| Hue family | Teals and cyans |
| Lightness | dark (27%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Jet (#212529) |
| Black text | 1.43:1 |
| White text | 14.67:1 |
Values
| HEX | #042E2B |
| RGB | rgb(4, 46, 43) |
| HSL | hsl(176, 84%, 10%) |
| OKLCH | oklch(27.3% 0.044 187.7) |
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 #042E2B | 14.67:1 | AAA | Lc -104.2 | Preferred for body text |
| Black text on #042E2B | 1.43:1 | Fails | Lc 0.0 | Not readable |
| #042E2B text on white | 14.67:1 | AAA | Lc 101.3 | Preferred for body text |
| #042E2B text on black | 1.43:1 | 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
#C4E0DC
oklch(88.5% 0.03 186.2)
-
Step 300
300
#9ACCC7
oklch(80.9% 0.053 188.5)
-
Step 400
400
#5CB2AA
oklch(70.8% 0.084 187.5)
-
Step 500
500
#0F9E95
oklch(63.1% 0.108 187.6)
-
Step 600
600
#00857D
oklch(55.5% 0.097 187.4)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#004D48
oklch(37.8% 0.066 187.3)
-
Step 950
950 (this color)
#042E2B
oklch(27.3% 0.044 187.7)
#042E2B 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) | #2B2B2B | 0.047 |
| Deuteranopia (no green cones) | #25272B | 0.043 |
| Tritanopia (no blue cones) | #002F2D | 0.005 |
| Achromatopsia (no color) | #282828 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #042E2B
#042E2B
oklch(27.3% 0.044 187.7)
- #3A1D23
#3A1D23
oklch(27.3% 0.046 7.3)
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 #042E2B, 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 0.046
- Oxford Blue #1B263B ΔE 0.053
- Dark Forest Green #002D04 ΔE 0.061
- Very Dark Green #062E03 ΔE 0.061
- Pakistan Green #283618 ΔE 0.062
- Gunmetal #293241 ΔE 0.062
- Midnight Green #073B4C ΔE 0.067
Use #042E2B 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.