#04282D
Closest named color: Dark (#1B2431). oklch(25.5% 0.04 208.5), rgb(4, 40, 45).
Aa
White text reads best on this color (15.59:1).
About this color
#04282D is a dark, muted teal or cyan. In OKLCH its lightness is 25%, its chroma 0.040 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.031 away. White text reads best on it, at 15.59:1.
| 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 | 15.59:1 |
Values
| HEX | #04282D |
| RGB | rgb(4, 40, 45) |
| HSL | hsl(187, 84%, 10%) |
| OKLCH | oklch(25.5% 0.04 208.5) |
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 #04282D | 15.59:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #04282D | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #04282D text on white | 15.59:1 | AAA | Lc 102.3 | Preferred for body text |
| #04282D 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0EDEF
oklch(93.7% 0.014 207.9)
-
Step 200
200
#C6DEE2
oklch(88.4% 0.026 208.7)
-
Step 300
300
#9DCAD1
oklch(80.9% 0.048 208)
-
Step 400
400
#63AEBA
oklch(70.7% 0.077 208.8)
-
Step 500
500
#2A9AA9
oklch(63.2% 0.098 208.3)
-
Step 600
600
#008291
oklch(55.5% 0.096 208.9)
-
Step 700
700
#006E7A
oklch(49.2% 0.085 207.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#034B53
oklch(37.8% 0.064 207.3)
-
Step 950
950 (this color)
#04282D
oklch(25.5% 0.04 208.5)
#04282D 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) | #23262D | 0.038 |
| Deuteranopia (no green cones) | #1E222D | 0.035 |
| Tritanopia (no blue cones) | #002A29 | 0.013 |
| Achromatopsia (no color) | #242424 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04282D
#04282D
oklch(25.5% 0.04 208.5)
- #341B17
#341B17
oklch(25.5% 0.041 29.9)
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 #04282D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.031
- Jet #212529 ΔE 0.034
- Oxford Blue #1B263B ΔE 0.040
- Rich Black #0D1B2A ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.068
- Gunmetal #293241 ΔE 0.069
- Dark Forest Green #002D04 ΔE 0.075
- Very Dark Green #062E03 ΔE 0.077
Use #04282D 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.