#225153
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.3% 0.051 199.1), rgb(34, 81, 83).
Aa
White text reads best on this color (8.86:1).
About this color
#225153 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.051 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.014 away. White text reads best on it, at 8.86:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.36:1 |
| White text | 8.86:1 |
Values
| HEX | #225153 |
| RGB | rgb(34, 81, 83) |
| HSL | hsl(182, 42%, 23%) |
| OKLCH | oklch(40.3% 0.051 199.1) |
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 #225153 | 8.86:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #225153 | 2.36:1 | Fails | Lc 13.9 | Not readable |
| #225153 text on white | 8.86:1 | AAA | Lc 90.1 | Preferred for body text |
| #225153 text on black | 2.36:1 | Fails | Lc -12.2 | 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 800.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E4ECEC
oklch(93.7% 0.009 197)
-
Step 200
200
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#ABC7C8
oklch(80.9% 0.03 199.2)
-
Step 400
400
#7EAAAC
oklch(70.7% 0.047 199.6)
-
Step 500
500
#5B9597
oklch(63.1% 0.061 198.5)
-
Step 600
600
#3F7F82
oklch(55.6% 0.066 199.5)
-
Step 700
700
#306B6E
oklch(49% 0.061 199.8)
-
Step 800
800 (this color)
#225153
oklch(40.3% 0.051 199.1)
-
Step 900
900
#26484A
oklch(37.7% 0.04 200.5)
-
Step 950
950
#172A2B
oklch(26.9% 0.025 200)
#225153 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) | #4C4D53 | 0.053 |
| Deuteranopia (no green cones) | #444853 | 0.048 |
| Tritanopia (no blue cones) | #005451 | 0.020 |
| Achromatopsia (no color) | #4A4A4A | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #225153
#225153
oklch(40.3% 0.051 199.1)
- #613D3E
#613D3E
oklch(40.2% 0.051 17.7)
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 #225153, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.014
- Deep Teal #00555A ΔE 0.020
- Dark Teal #014D4E ΔE 0.026
- Dark Blue Green #005249 ΔE 0.028
- Charcoal #264653 ΔE 0.036
- Dark Grey Blue #29465B ΔE 0.043
- Petrol #005F6A ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.055
Use #225153 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.