#23528A
Closest named color: Dusk Blue (#26538D). oklch(43.6% 0.106 254.6), rgb(35, 82, 138).
Aa
White text reads best on this color (7.93:1).
About this color
#23528A is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.106 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.006 away. White text reads best on it, at 7.93:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.64:1 |
| White text | 7.93:1 |
Values
| HEX | #23528A |
| RGB | rgb(35, 82, 138) |
| HSL | hsl(213, 60%, 34%) |
| OKLCH | oklch(43.6% 0.106 254.6) |
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 #23528A | 7.93:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #23528A | 2.64:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #23528A text on white | 7.93:1 | AAA | Lc 87.2 | Fine for body text |
| #23528A text on black | 2.64:1 | Fails | Lc -14.9 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CADBF0
oklch(88.5% 0.034 253.7)
-
Step 300
300
#A6C3E9
oklch(80.9% 0.063 255.3)
-
Step 400
400
#75A3DD
oklch(70.6% 0.099 254.7)
-
Step 500
500
#508BD4
oklch(63% 0.127 254.7)
-
Step 600
600
#3374C1
oklch(55.6% 0.137 254.5)
-
Step 700
700
#2561A7
oklch(49.1% 0.128 254.6)
-
Step 800
800 (this color)
#23528A
oklch(43.6% 0.106 254.6)
-
Step 900
900
#20426C
oklch(37.6% 0.083 254.9)
-
Step 950
950
#13273F
oklch(26.9% 0.052 254)
#23528A 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) | #38568C | 0.026 |
| Deuteranopia (no green cones) | #284D89 | 0.014 |
| Tritanopia (no blue cones) | #005F67 | 0.081 |
| Achromatopsia (no color) | #515151 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23528A
#23528A
oklch(43.6% 0.106 254.6)
- #6F4800
#6F4800
oklch(43.5% 0.092 73.8)
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 #23528A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.006
- Light Navy #155084 ΔE 0.016
- Deep Sea Blue #015482 ΔE 0.023
- Light Navy Blue #2E5A88 ΔE 0.028
- Cobalt #1E488F ΔE 0.032
- Denim Blue #3B5B92 ΔE 0.040
- Twilight #4E518B ΔE 0.051
- Dusk #4E5481 ΔE 0.054
Use #23528A 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.