#255654
Closest named color: Deep Teal (#00555A). oklch(41.9% 0.053 191.7), rgb(37, 86, 84).
Aa
White text reads best on this color (8.27:1).
About this color
#255654 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.053 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.022 away. White text reads best on it, at 8.27:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.53:1 |
| White text | 8.27:1 |
Values
| HEX | #255654 |
| RGB | rgb(37, 86, 84) |
| HSL | hsl(178, 40%, 24%) |
| OKLCH | oklch(41.9% 0.053 191.7) |
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 #255654 | 8.27:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #255654 | 2.53:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #255654 text on white | 8.27:1 | AAA | Lc 88.4 | Fine for body text |
| #255654 text on black | 2.53:1 | Fails | Lc -13.8 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CDDDDC
oklch(88.5% 0.017 192.3)
-
Step 300
300
#ABC7C5
oklch(80.8% 0.03 191.3)
-
Step 400
400
#7DABA8
oklch(70.7% 0.049 191.1)
-
Step 500
500
#599693
oklch(63.1% 0.064 191.6)
-
Step 600
600
#3C807D
oklch(55.5% 0.069 191.5)
-
Step 700
700
#2E6C6A
oklch(49% 0.064 192.4)
-
Step 800
800 (this color)
#255654
oklch(41.9% 0.053 191.7)
-
Step 900
900
#254947
oklch(37.8% 0.042 190.9)
-
Step 950
950
#162B2A
oklch(27.1% 0.027 191.8)
#255654 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) | #515254 | 0.056 |
| Deuteranopia (no green cones) | #494C54 | 0.052 |
| Tritanopia (no blue cones) | #015855 | 0.019 |
| Achromatopsia (no color) | #4E4E4E | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255654
#255654
oklch(41.9% 0.053 191.7)
- #664145
#664145
oklch(41.9% 0.052 12.5)
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 #255654, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.022
- Dark Slate Gray #2F4F4F ΔE 0.022
- Dark Blue Green #005249 ΔE 0.032
- Petrol #005F6A ΔE 0.039
- Dark Teal #014D4E ΔE 0.040
- Dark Green Blue #1F6357 ΔE 0.041
- Charcoal #264653 ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.058
Use #255654 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.