#225D57
Closest named color: Dark Green Blue (#1F6357). oklch(43.8% 0.062 186), rgb(34, 93, 87).
Aa
White text reads best on this color (7.57:1).
About this color
#225D57 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.062 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.020 away. White text reads best on it, at 7.57:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.77:1 |
| White text | 7.57:1 |
Values
| HEX | #225D57 |
| RGB | rgb(34, 93, 87) |
| HSL | hsl(174, 46%, 25%) |
| OKLCH | oklch(43.8% 0.062 186) |
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 #225D57 | 7.57:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #225D57 | 2.77:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #225D57 text on white | 7.57:1 | AAA | Lc 86.1 | Fine for body text |
| #225D57 text on black | 2.77:1 | Fails | Lc -15.9 | Dividers and decoration only |
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
#CBDEDB
oklch(88.6% 0.021 185.4)
-
Step 300
300
#A8C9C4
oklch(81% 0.036 185.3)
-
Step 400
400
#77ADA6
oklch(70.8% 0.058 185.9)
-
Step 500
500
#509890
oklch(63.1% 0.074 186.1)
-
Step 600
600
#30827A
oklch(55.5% 0.08 186.2)
-
Step 700
700
#216E67
oklch(49% 0.074 186.4)
-
Step 800
800 (this color)
#225D57
oklch(43.8% 0.062 186)
-
Step 900
900
#204A45
oklch(37.7% 0.048 185.1)
-
Step 950
950
#142B29
oklch(26.9% 0.029 188.3)
#225D57 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) | #585857 | 0.065 |
| Deuteranopia (no green cones) | #4F5158 | 0.062 |
| Tritanopia (no blue cones) | #005F5B | 0.015 |
| Achromatopsia (no color) | #545454 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #225D57
#225D57
oklch(43.8% 0.062 186)
- #6F434D
#6F434D
oklch(43.8% 0.062 5.2)
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 #225D57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.020
- Petrol #005F6A ΔE 0.031
- Deep Teal #00555A ΔE 0.035
- Dark Aqua #05696B ΔE 0.041
- Dark Slate Gray #2F4F4F ΔE 0.043
- Dark Blue Green #005249 ΔE 0.046
- Pine #2B5D34 ΔE 0.054
- Spruce #0A5F38 ΔE 0.055
Use #225D57 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.