#00282F
Closest named color: Dark (#1B2431). oklch(25.4% 0.044 212.2), rgb(0, 40, 47).
Aa
White text reads best on this color (15.61:1).
About this color
#00282F is a dark, muted teal or cyan. In OKLCH its lightness is 25%, its chroma 0.044 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.032 away. White text reads best on it, at 15.61:1.
| Hue family | Teals and cyans |
| Lightness | dark (25%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.34:1 |
| White text | 15.61:1 |
Values
| HEX | #00282F |
| RGB | rgb(0, 40, 47) |
| HSL | hsl(189, 100%, 9%) |
| OKLCH | oklch(25.4% 0.044 212.2) |
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 #00282F | 15.61:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #00282F | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #00282F text on white | 15.61:1 | AAA | Lc 102.3 | Preferred for body text |
| #00282F 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DFEDF0
oklch(93.7% 0.015 212)
-
Step 200
200
#C4DFE4
oklch(88.5% 0.029 210)
-
Step 300
300
#9ACAD4
oklch(80.9% 0.052 211.8)
-
Step 400
400
#5CAFBF
oklch(70.8% 0.084 211.7)
-
Step 500
500
#119AAF
oklch(63.1% 0.107 212)
-
Step 600
600
#008294
oklch(55.7% 0.097 211.6)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#004A56
oklch(37.6% 0.066 213)
-
Step 950
950 (this color)
#00282F
oklch(25.4% 0.044 212.2)
#00282F 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) | #23262F | 0.041 |
| Deuteranopia (no green cones) | #1C222F | 0.036 |
| Tritanopia (no blue cones) | #002B2A | 0.017 |
| Achromatopsia (no color) | #242424 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00282F
#00282F
oklch(25.4% 0.044 212.2)
- #351A15
#351A15
oklch(25.4% 0.044 31.5)
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 #00282F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.032
- Jet #212529 ΔE 0.038
- Oxford Blue #1B263B ΔE 0.040
- Rich Black #0D1B2A ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.069
- Gunmetal #293241 ΔE 0.070
- Midnight Green #073B4C ΔE 0.077
- Dark Forest Green #002D04 ΔE 0.078
Use #00282F 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.