#254F43
Closest named color: Dark Blue Green (#005249). oklch(39.3% 0.052 172.7), rgb(37, 79, 67).
Aa
White text reads best on this color (9.21:1).
About this color
#254F43 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.052 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.021 away. White text reads best on it, at 9.21:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.27:1 |
| White text | 9.21:1 |
Values
| HEX | #254F43 |
| RGB | rgb(37, 79, 67) |
| HSL | hsl(163, 36%, 23%) |
| OKLCH | oklch(39.3% 0.052 172.7) |
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 #254F43 | 9.21:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #254F43 | 2.27:1 | Fails | Lc 12.8 | Not readable |
| #254F43 text on white | 9.21:1 | AAA | Lc 91.1 | Preferred for body text |
| #254F43 text on black | 2.27:1 | Fails | Lc -11.2 | 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
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CCDED8
oklch(88.5% 0.021 173.9)
-
Step 300
300
#A8C9BE
oklch(80.8% 0.039 173.1)
-
Step 400
400
#78AE9D
oklch(70.8% 0.062 172.8)
-
Step 500
500
#529985
oklch(63.1% 0.079 173.3)
-
Step 600
600
#32846E
oklch(55.7% 0.087 172.3)
-
Step 700
700
#236F5C
oklch(49% 0.08 173)
-
Step 800
800
#205B4B
oklch(42.8% 0.067 172.1)
-
Step 900
900 (this color)
#254F43
oklch(39.3% 0.052 172.7)
-
Step 950
950
#142C25
oklch(27.1% 0.033 172.8)
#254F43 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) | #4D4A42 | 0.054 |
| Deuteranopia (no green cones) | #464644 | 0.051 |
| Tritanopia (no blue cones) | #14504B | 0.016 |
| Achromatopsia (no color) | #484848 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #254F43
#254F43
oklch(39.3% 0.052 172.7)
- #5C3A48
#5C3A48
oklch(39.3% 0.052 353.4)
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 #254F43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.021
- Dark Slate Gray #2F4F4F ΔE 0.025
- Dark Teal #014D4E ΔE 0.029
- Deep Teal #00555A ΔE 0.038
- Charcoal #264653 ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.052
- Evergreen #05472A ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.059
Use #254F43 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.