#042D2F
Closest named color: Jet (#212529). oklch(27.1% 0.043 199.9), rgb(4, 45, 47).
Aa
White text reads best on this color (14.77:1).
About this color
#042D2F is a dark, muted teal or cyan. In OKLCH its lightness is 27%, its chroma 0.043 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Jet (#212529), ΔE 0.039 away. White text reads best on it, at 14.77:1.
| Hue family | Teals and cyans |
| Lightness | dark (27%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Jet (#212529) |
| Black text | 1.42:1 |
| White text | 14.77:1 |
Values
| HEX | #042D2F |
| RGB | rgb(4, 45, 47) |
| HSL | hsl(183, 84%, 10%) |
| OKLCH | oklch(27.1% 0.043 199.9) |
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 #042D2F | 14.77:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #042D2F | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #042D2F text on white | 14.77:1 | AAA | Lc 101.4 | Preferred for body text |
| #042D2F text on black | 1.42:1 | 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
#F0F7F7
oklch(97.1% 0.007 197)
-
Step 100
100
#DFEDEE
oklch(93.6% 0.015 202)
-
Step 200
200
#C4DFE0
oklch(88.4% 0.029 199.4)
-
Step 300
300
#9ACBCD
oklch(80.8% 0.051 199.3)
-
Step 400
400
#5CB0B4
oklch(70.6% 0.082 199.5)
-
Step 500
500
#129CA2
oklch(63.1% 0.104 199.8)
-
Step 600
600
#008489
oklch(55.7% 0.095 199.5)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#005B5E
oklch(42.8% 0.073 198.7)
-
Step 900
900
#004C4F
oklch(37.8% 0.064 199.4)
-
Step 950
950 (this color)
#042D2F
oklch(27.1% 0.043 199.9)
#042D2F 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) | #292A2F | 0.044 |
| Deuteranopia (no green cones) | #23262F | 0.041 |
| Tritanopia (no blue cones) | #002F2E | 0.008 |
| Achromatopsia (no color) | #282828 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #042D2F
#042D2F
oklch(27.1% 0.043 199.9)
- #391E1E
#391E1E
oklch(27.2% 0.042 20.2)
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 #042D2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.039
- Dark #1B2431 ΔE 0.039
- Oxford Blue #1B263B ΔE 0.045
- Gunmetal #293241 ΔE 0.058
- Space Cadet #2B2D42 ΔE 0.062
- Midnight Green #073B4C ΔE 0.064
- Rich Black #0D1B2A ΔE 0.064
- Pakistan Green #283618 ΔE 0.069
Use #042D2F 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.