#042829
Closest named color: Dark (#1B2431). oklch(25.3% 0.04 197.7), rgb(4, 40, 41).
Aa
White text reads best on this color (15.66:1).
About this color
#042829 is a dark, muted teal or cyan. In OKLCH its lightness is 25%, its chroma 0.040 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.035 away. White text reads best on it, at 15.66:1.
| Hue family | Teals and cyans |
| Lightness | dark (25%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.34:1 |
| White text | 15.66:1 |
Values
| HEX | #042829 |
| RGB | rgb(4, 40, 41) |
| HSL | hsl(182, 82%, 9%) |
| OKLCH | oklch(25.3% 0.04 197.7) |
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 #042829 | 15.66:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #042829 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #042829 text on white | 15.66:1 | AAA | Lc 102.4 | Preferred for body text |
| #042829 text on black | 1.34:1 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E0EDED
oklch(93.6% 0.014 196.9)
-
Step 200
200
#C6DFDF
oklch(88.5% 0.027 196.7)
-
Step 300
300
#9ECACB
oklch(80.8% 0.046 198)
-
Step 400
400
#64AFB1
oklch(70.6% 0.075 197.8)
-
Step 500
500
#2C9B9E
oklch(63.1% 0.096 197.7)
-
Step 600
600
#008487
oklch(55.6% 0.095 197.6)
-
Step 700
700
#006F71
oklch(49.1% 0.084 197)
-
Step 800
800
#005B5D
oklch(42.7% 0.073 197.4)
-
Step 900
900
#044B4D
oklch(37.5% 0.062 198)
-
Step 950
950 (this color)
#042829
oklch(25.3% 0.04 197.7)
#042829 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) | #242629 | 0.040 |
| Deuteranopia (no green cones) | #1F2229 | 0.037 |
| Tritanopia (no blue cones) | #002A28 | 0.009 |
| Achromatopsia (no color) | #232323 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #042829
#042829
oklch(25.3% 0.04 197.7)
- #331A1B
#331A1B
oklch(25.3% 0.04 17.7)
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 #042829, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.035
- Jet #212529 ΔE 0.036
- Oxford Blue #1B263B ΔE 0.047
- Rich Black #0D1B2A ΔE 0.049
- Dark Forest Green #002D04 ΔE 0.068
- Very Dark Green #062E03 ΔE 0.069
- Gunmetal #293241 ΔE 0.073
- Space Cadet #2B2D42 ΔE 0.073
Use #042829 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.