#23547D
Closest named color: Deep Sea Blue (#015482). oklch(43.3% 0.086 246.8), rgb(35, 84, 125).
Aa
White text reads best on this color (7.96:1).
About this color
#23547D is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.086 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.018 away. White text reads best on it, at 7.96:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.63:1 |
| White text | 7.96:1 |
Values
| HEX | #23547D |
| RGB | rgb(35, 84, 125) |
| HSL | hsl(207, 56%, 31%) |
| OKLCH | oklch(43.3% 0.086 246.8) |
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 #23547D | 7.96:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #23547D | 2.63:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #23547D text on white | 7.96:1 | AAA | Lc 87.4 | Fine for body text |
| #23547D text on black | 2.63:1 | Fails | Lc -14.7 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDBEB
oklch(88.4% 0.028 248.1)
-
Step 300
300
#A7C4E0
oklch(80.8% 0.051 247.5)
-
Step 400
400
#77A6D0
oklch(70.8% 0.08 246.2)
-
Step 500
500
#528FC4
oklch(63.1% 0.102 246.5)
-
Step 600
600
#3478B1
oklch(55.6% 0.112 246.9)
-
Step 700
700
#266598
oklch(49.1% 0.104 246.6)
-
Step 800
800 (this color)
#23547D
oklch(43.3% 0.086 246.8)
-
Step 900
900
#214463
oklch(37.6% 0.067 247.4)
-
Step 950
950
#14283A
oklch(26.9% 0.043 247.2)
#23547D 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) | #42567F | 0.035 |
| Deuteranopia (no green cones) | #354D7C | 0.025 |
| Tritanopia (no blue cones) | #005E63 | 0.064 |
| Achromatopsia (no color) | #515151 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23547D
#23547D
oklch(43.3% 0.086 246.8)
- #704612
#704612
oklch(43.3% 0.086 66.7)
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 #23547D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.018
- Light Navy #155084 ΔE 0.022
- Light Navy Blue #2E5A88 ΔE 0.027
- Dusk Blue #26538D ΔE 0.028
- YInMn Blue #415A77 ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.048
- Cobalt #1E488F ΔE 0.051
- Dusk #4E5481 ΔE 0.052
Use #23547D 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.