#042C25
Closest named color: Jet (#212529). oklch(26.4% 0.045 178.2), rgb(4, 44, 37).
Aa
White text reads best on this color (15.08:1).
About this color
#042C25 is a dark, muted teal or cyan. In OKLCH its lightness is 26%, its chroma 0.045 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Jet (#212529), ΔE 0.043 away. White text reads best on it, at 15.08:1.
| Hue family | Teals and cyans |
| Lightness | dark (26%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Jet (#212529) |
| Black text | 1.39:1 |
| White text | 15.08:1 |
Values
| HEX | #042C25 |
| RGB | rgb(4, 44, 37) |
| HSL | hsl(170, 83%, 9%) |
| OKLCH | oklch(26.4% 0.045 178.2) |
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 #042C25 | 15.08:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #042C25 | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #042C25 text on white | 15.08:1 | AAA | Lc 101.8 | Preferred for body text |
| #042C25 text on black | 1.39:1 | 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
#C5E0D9
oklch(88.5% 0.03 178.3)
-
Step 300
300
#9CCCC1
oklch(80.8% 0.053 179.3)
-
Step 400
400
#60B2A1
oklch(70.7% 0.085 178.6)
-
Step 500
500
#1F9F8A
oklch(63.2% 0.109 178.3)
-
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
#004D42
oklch(37.6% 0.069 179)
-
Step 950
950 (this color)
#042C25
oklch(26.4% 0.045 178.2)
#042C25 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) | #2A2925 | 0.048 |
| Deuteranopia (no green cones) | #242526 | 0.044 |
| Tritanopia (no blue cones) | #002D2A | 0.009 |
| Achromatopsia (no color) | #262626 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #042C25
#042C25
oklch(26.4% 0.045 178.2)
- #361B25
#361B25
oklch(26.3% 0.045 357)
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 #042C25, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.043
- Dark #1B2431 ΔE 0.049
- Dark Forest Green #002D04 ΔE 0.053
- Very Dark Green #062E03 ΔE 0.053
- Oxford Blue #1B263B ΔE 0.059
- Pakistan Green #283618 ΔE 0.063
- Rich Black #0D1B2A ΔE 0.067
- Gunmetal #293241 ΔE 0.072
Use #042C25 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.