#255447
Closest named color: Dark Blue Green (#005249). oklch(40.9% 0.056 172.9), rgb(37, 84, 71).
Aa
White text reads best on this color (8.61:1).
About this color
#255447 is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.056 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.023 away. White text reads best on it, at 8.61:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.43:1 |
| White text | 8.61:1 |
Values
| HEX | #255447 |
| RGB | rgb(37, 84, 71) |
| HSL | hsl(163, 39%, 24%) |
| OKLCH | oklch(40.9% 0.056 172.9) |
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 #255447 | 8.61:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #255447 | 2.43:1 | Fails | Lc 14.6 | Not readable |
| #255447 text on white | 8.61:1 | AAA | Lc 89.4 | Fine for body text |
| #255447 text on black | 2.43:1 | Fails | Lc -12.8 | 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 800.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CEDDD8
oklch(88.5% 0.017 174)
-
Step 300
300
#ACC8BE
oklch(80.9% 0.033 171.9)
-
Step 400
400
#7FAC9D
oklch(70.8% 0.053 172.2)
-
Step 500
500
#5D9785
oklch(63.1% 0.067 172.3)
-
Step 600
600
#40816F
oklch(55.5% 0.073 173.3)
-
Step 700
700
#326D5D
oklch(49% 0.067 173.3)
-
Step 800
800 (this color)
#255447
oklch(40.9% 0.056 172.9)
-
Step 900
900
#27493F
oklch(37.6% 0.044 172.9)
-
Step 950
950
#182B25
oklch(27% 0.027 172.2)
#255447 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) | #514F46 | 0.058 |
| Deuteranopia (no green cones) | #4A4A48 | 0.055 |
| Tritanopia (no blue cones) | #105550 | 0.018 |
| Achromatopsia (no color) | #4C4C4C | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255447
#255447
oklch(40.9% 0.056 172.9)
- #623D4D
#623D4D
oklch(40.9% 0.057 352.4)
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 #255447, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.023
- Dark Slate Gray #2F4F4F ΔE 0.027
- Deep Teal #00555A ΔE 0.034
- Dark Teal #014D4E ΔE 0.038
- Dark Green Blue #1F6357 ΔE 0.048
- Pine #2B5D34 ΔE 0.048
- Spruce #0A5F38 ΔE 0.052
- Charcoal #264653 ΔE 0.057
Use #255447 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.