#22539D
Closest named color: Dusk Blue (#26538D). oklch(45.1% 0.132 258.7), rgb(34, 83, 157).
Aa
White text reads best on this color (7.52:1).
About this color
#22539D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.132 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.026 away. White text reads best on it, at 7.52:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.79:1 |
| White text | 7.52:1 |
Values
| HEX | #22539D |
| RGB | rgb(34, 83, 157) |
| HSL | hsl(216, 64%, 37%) |
| OKLCH | oklch(45.1% 0.132 258.7) |
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 #22539D | 7.52:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #22539D | 2.79:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #22539D text on white | 7.52:1 | AAA | Lc 85.7 | Fine for body text |
| #22539D text on black | 2.79:1 | Fails | Lc -16.3 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C8DAF6
oklch(88.4% 0.043 259.2)
-
Step 300
300
#A3C2F3
oklch(80.9% 0.077 259.4)
-
Step 400
400
#70A1ED
oklch(70.6% 0.124 258.9)
-
Step 500
500
#4A88E7
oklch(63.2% 0.157 258.7)
-
Step 600
600
#2B6FD5
oklch(55.5% 0.171 258.8)
-
Step 700
700
#1E5CB9
oklch(49% 0.16 259)
-
Step 800
800 (this color)
#22539D
oklch(45.1% 0.132 258.7)
-
Step 900
900
#1C4077
oklch(37.7% 0.103 258.8)
-
Step 950
950
#112646
oklch(27% 0.066 258.6)
#22539D 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) | #2B5AA0 | 0.023 |
| Deuteranopia (no green cones) | #0B4F9C | 0.019 |
| Tritanopia (no blue cones) | #006570 | 0.103 |
| Achromatopsia (no color) | #545454 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #22539D
#22539D
oklch(45.1% 0.132 258.7)
- #714E00
#714E00
oklch(45.1% 0.094 78.9)
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 #22539D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.026
- Cobalt #1E488F ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.041
- Light Navy #155084 ΔE 0.043
- Light Navy Blue #2E5A88 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.050
- Twilight #4E518B ΔE 0.056
- Blueberry #464196 ΔE 0.058
Use #22539D 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.