#23587C
Closest named color: Light Navy Blue (#2E5A88). oklch(44.2% 0.081 241.7), rgb(35, 88, 124).
Aa
White text reads best on this color (7.61:1).
About this color
#23587C is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.081 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.023 away. White text reads best on it, at 7.61:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.75:1 |
| White text | 7.61:1 |
Values
| HEX | #23587C |
| RGB | rgb(35, 88, 124) |
| HSL | hsl(204, 56%, 31%) |
| OKLCH | oklch(44.2% 0.081 241.7) |
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 #23587C | 7.61:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #23587C | 2.75:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #23587C text on white | 7.61:1 | AAA | Lc 86.2 | Fine for body text |
| #23587C text on black | 2.75:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CBDCE9
oklch(88.6% 0.026 240.7)
-
Step 300
300
#A6C5DD
oklch(80.9% 0.048 241.5)
-
Step 400
400
#75A7CC
oklch(70.7% 0.076 241.2)
-
Step 500
500
#4F90BF
oklch(63% 0.098 241.9)
-
Step 600
600
#307AAB
oklch(55.6% 0.105 241.4)
-
Step 700
700
#226693
oklch(49% 0.098 242.1)
-
Step 800
800 (this color)
#23587C
oklch(44.2% 0.081 241.7)
-
Step 900
900
#1F4560
oklch(37.6% 0.063 242.1)
-
Step 950
950
#132938
oklch(27% 0.04 240.2)
#23587C 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) | #48587E | 0.041 |
| Deuteranopia (no green cones) | #3B507B | 0.032 |
| Tritanopia (no blue cones) | #006165 | 0.057 |
| Achromatopsia (no color) | #545454 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23587C
#23587C
oklch(44.2% 0.081 241.7)
- #73481E
#73481E
oklch(44.3% 0.081 62.1)
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 #23587C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.023
- Deep Sea Blue #015482 ΔE 0.025
- Light Navy #155084 ΔE 0.033
- YInMn Blue #415A77 ΔE 0.033
- Dusk Blue #26538D ΔE 0.035
- Petrol #005F6A ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.045
- Denim #3B638C ΔE 0.048
Use #23587C 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.