#225A73
Closest named color: Petrol (#005F6A). oklch(44.2% 0.071 230.7), rgb(34, 90, 115).
Aa
White text reads best on this color (7.55:1).
About this color
#225A73 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.071 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.029 away. White text reads best on it, at 7.55:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.77:1 |
| White text | 7.55:1 |
Values
| HEX | #225A73 |
| RGB | rgb(34, 90, 115) |
| HSL | hsl(199, 54%, 29%) |
| OKLCH | oklch(44.2% 0.071 230.7) |
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 #225A73 | 7.55:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #225A73 | 2.77:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #225A73 text on white | 7.55:1 | AAA | Lc 86.0 | Fine for body text |
| #225A73 text on black | 2.77:1 | Fails | Lc -16.0 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2EBF0
oklch(93.5% 0.012 231.7)
-
Step 200
200
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A6C6D7
oklch(80.9% 0.042 231.1)
-
Step 400
400
#75A9C3
oklch(70.8% 0.067 230.6)
-
Step 500
500
#4F93B3
oklch(63.1% 0.084 230.5)
-
Step 600
600
#2E7D9F
oklch(55.7% 0.092 230.3)
-
Step 700
700
#206988
oklch(49.1% 0.085 230.7)
-
Step 800
800 (this color)
#225A73
oklch(44.2% 0.071 230.7)
-
Step 900
900
#1F4759
oklch(37.7% 0.054 229.9)
-
Step 950
950
#132A34
oklch(27.1% 0.034 228.3)
#225A73 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) | #4D5974 | 0.048 |
| Deuteranopia (no green cones) | #425173 | 0.041 |
| Tritanopia (no blue cones) | #006162 | 0.044 |
| Achromatopsia (no color) | #545454 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #225A73
#225A73
oklch(44.2% 0.071 230.7)
- #72472D
#72472D
oklch(44.2% 0.071 51.2)
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 #225A73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.029
- YInMn Blue #415A77 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.038
- Deep Sea Blue #015482 ΔE 0.039
- Light Navy #155084 ΔE 0.048
- Deep Teal #00555A ΔE 0.048
- Dusk Blue #26538D ΔE 0.053
- Dark Aqua #05696B ΔE 0.054
Use #225A73 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.