#225255
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.7% 0.052 200.9), rgb(34, 82, 85).
Aa
White text reads best on this color (8.72:1).
About this color
#225255 is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.052 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.015 away. White text reads best on it, at 8.72:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.40:1 |
| White text | 8.72:1 |
Values
| HEX | #225255 |
| RGB | rgb(34, 82, 85) |
| HSL | hsl(184, 43%, 23%) |
| OKLCH | oklch(40.7% 0.052 200.9) |
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 #225255 | 8.72:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #225255 | 2.40:1 | Fails | Lc 14.2 | Not readable |
| #225255 text on white | 8.72:1 | AAA | Lc 89.7 | Fine for body text |
| #225255 text on black | 2.40:1 | Fails | Lc -12.5 | 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
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CDDDDE
oklch(88.6% 0.017 201.4)
-
Step 300
300
#ABC7C9
oklch(81% 0.03 201.9)
-
Step 400
400
#7DAAAD
oklch(70.7% 0.048 201.3)
-
Step 500
500
#5A9599
oklch(63.1% 0.062 201.3)
-
Step 600
600
#3D7F83
oklch(55.5% 0.067 200.7)
-
Step 700
700
#2F6B6F
oklch(49% 0.062 201.2)
-
Step 800
800 (this color)
#225255
oklch(40.7% 0.052 200.9)
-
Step 900
900
#25484A
oklch(37.6% 0.041 200.4)
-
Step 950
950
#172A2C
oklch(27% 0.025 204.3)
#225255 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) | #4C4F55 | 0.052 |
| Deuteranopia (no green cones) | #444855 | 0.050 |
| Tritanopia (no blue cones) | #005553 | 0.020 |
| Achromatopsia (no color) | #4B4B4B | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #225255
#225255
oklch(40.7% 0.052 200.9)
- #633E3D
#633E3D
oklch(40.7% 0.052 21.3)
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 #225255, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.015
- Deep Teal #00555A ΔE 0.018
- Dark Teal #014D4E ΔE 0.029
- Dark Blue Green #005249 ΔE 0.030
- Charcoal #264653 ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.044
- Petrol #005F6A ΔE 0.045
- Dark Green Blue #1F6357 ΔE 0.055
Use #225255 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.