#255145
Closest named color: Dark Blue Green (#005249). oklch(40% 0.053 173.4), rgb(37, 81, 69).
Aa
White text reads best on this color (8.96:1).
About this color
#255145 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.053 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.020 away. White text reads best on it, at 8.96:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.34:1 |
| White text | 8.96:1 |
Values
| HEX | #255145 |
| RGB | rgb(37, 81, 69) |
| HSL | hsl(164, 37%, 23%) |
| OKLCH | oklch(40% 0.053 173.4) |
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 #255145 | 8.96:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #255145 | 2.34:1 | Fails | Lc 13.5 | Not readable |
| #255145 text on white | 8.96:1 | AAA | Lc 90.4 | Preferred for body text |
| #255145 text on black | 2.34:1 | Fails | Lc -11.9 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2ECE9
oklch(93.5% 0.011 176.3)
-
Step 200
200
#CBDED8
oklch(88.5% 0.022 174.9)
-
Step 300
300
#A7C9BE
oklch(80.8% 0.04 173.7)
-
Step 400
400
#76AE9D
oklch(70.7% 0.064 173.4)
-
Step 500
500
#4F9A85
oklch(63.2% 0.082 173.2)
-
Step 600
600
#2E846F
oklch(55.6% 0.088 173.7)
-
Step 700
700
#1F705D
oklch(49.2% 0.083 173.7)
-
Step 800
800
#1D5B4C
oklch(42.7% 0.068 173.9)
-
Step 900
900 (this color)
#255145
oklch(40% 0.053 173.4)
-
Step 950
950
#132C25
oklch(27% 0.034 173.4)
#255145 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) | #4F4C44 | 0.056 |
| Deuteranopia (no green cones) | #484746 | 0.054 |
| Tritanopia (no blue cones) | #12524D | 0.017 |
| Achromatopsia (no color) | #494949 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255145
#255145
oklch(40% 0.053 173.4)
- #5E3B4A
#5E3B4A
oklch(39.9% 0.054 352.5)
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 #255145, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.020
- Dark Slate Gray #2F4F4F ΔE 0.024
- Dark Teal #014D4E ΔE 0.032
- Deep Teal #00555A ΔE 0.035
- Charcoal #264653 ΔE 0.050
- Pine #2B5D34 ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.056
- Dark Green Blue #1F6357 ΔE 0.057
Use #255145 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.