#004237
Closest named color: Evergreen (#05472A). oklch(33.9% 0.063 177), rgb(0, 66, 55).
Aa
White text reads best on this color (11.44:1).
About this color
#004237 is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.063 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Evergreen (#05472A), ΔE 0.032 away. White text reads best on it, at 11.44:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Evergreen (#05472A) |
| Black text | 1.83:1 |
| White text | 11.44:1 |
Values
| HEX | #004237 |
| RGB | rgb(0, 66, 55) |
| HSL | hsl(170, 100%, 13%) |
| OKLCH | oklch(33.9% 0.063 177) |
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 #004237 | 11.44:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #004237 | 1.83:1 | Fails | Lc 8.0 | Not readable |
| #004237 text on white | 11.44:1 | AAA | Lc 95.9 | Preferred for body text |
| #004237 text on black | 1.83:1 | 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 900.
-
Step 50
50
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C8DFD9
oklch(88.5% 0.026 178.3)
-
Step 300
300
#A1CBC0
oklch(80.9% 0.047 177.3)
-
Step 400
400
#6AB0A0
oklch(70.6% 0.075 177.8)
-
Step 500
500
#3A9C88
oklch(63% 0.096 177.1)
-
Step 600
600
#008772
oklch(55.7% 0.104 176.6)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800
#005D4E
oklch(42.8% 0.079 176.7)
-
Step 900
900 (this color)
#004237
oklch(33.9% 0.063 177)
-
Step 950
950
#0D2D26
oklch(27.1% 0.04 176.4)
#004237 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) | #3F3D37 | 0.066 |
| Deuteranopia (no green cones) | #373738 | 0.063 |
| Tritanopia (no blue cones) | #00433F | 0.014 |
| Achromatopsia (no color) | #3A3A3A | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004237
#004237
oklch(33.9% 0.063 177)
- #512938
#512938
oklch(33.9% 0.063 357.1)
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 #004237, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Evergreen #05472A ΔE 0.032
- Dark Teal #014D4E ΔE 0.047
- Pine Green #0A481E ΔE 0.050
- Midnight Green #073B4C ΔE 0.051
- Pakistan Green #283618 ΔE 0.055
- Dark Blue Green #005249 ΔE 0.056
- Dark Blue Grey #1F3B4D ΔE 0.058
- Charcoal #264653 ΔE 0.060
Use #004237 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.