#225A63
Closest named color: Petrol (#005F6A). oklch(43.5% 0.06 209.7), rgb(34, 90, 99).
Aa
White text reads best on this color (7.74:1).
About this color
#225A63 is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.060 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.019 away. White text reads best on it, at 7.74:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.71:1 |
| White text | 7.74:1 |
Values
| HEX | #225A63 |
| RGB | rgb(34, 90, 99) |
| HSL | hsl(188, 49%, 26%) |
| OKLCH | oklch(43.5% 0.06 209.7) |
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 #225A63 | 7.74:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #225A63 | 2.71:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #225A63 text on white | 7.74:1 | AAA | Lc 86.7 | Fine for body text |
| #225A63 text on black | 2.71:1 | Fails | Lc -15.4 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CBDDE0
oklch(88.5% 0.02 208.8)
-
Step 300
300
#A8C7CD
oklch(80.9% 0.034 210.7)
-
Step 400
400
#77ABB4
oklch(70.8% 0.056 209.4)
-
Step 500
500
#5195A1
oklch(63% 0.071 210.2)
-
Step 600
600
#32808C
oklch(55.7% 0.077 209.2)
-
Step 700
700
#236C77
oklch(49.2% 0.072 209.3)
-
Step 800
800 (this color)
#225A63
oklch(43.5% 0.06 209.7)
-
Step 900
900
#20484F
oklch(37.6% 0.046 210.4)
-
Step 950
950
#142A2E
oklch(26.9% 0.029 210.5)
#225A63 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) | #525764 | 0.056 |
| Deuteranopia (no green cones) | #484F63 | 0.052 |
| Tritanopia (no blue cones) | #005E5D | 0.024 |
| Achromatopsia (no color) | #535353 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #225A63
#225A63
oklch(43.5% 0.06 209.7)
- #6E443E
#6E443E
oklch(43.4% 0.06 28.6)
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 #225A63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.019
- Deep Teal #00555A ΔE 0.029
- Dark Slate Gray #2F4F4F ΔE 0.040
- Dark Green Blue #1F6357 ΔE 0.041
- Dark Aqua #05696B ΔE 0.046
- YInMn Blue #415A77 ΔE 0.049
- Dark Blue Green #005249 ΔE 0.052
- Dark Teal #014D4E ΔE 0.056
Use #225A63 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.