#23516D
Closest named color: Deep Sea Blue (#015482). oklch(41.6% 0.069 238.3), rgb(35, 81, 109).
Aa
White text reads best on this color (8.50:1).
About this color
#23516D is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.069 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.036 away. White text reads best on it, at 8.50:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.46:1 |
| White text | 8.50:1 |
Values
| HEX | #23516D |
| RGB | rgb(35, 81, 109) |
| HSL | hsl(203, 51%, 28%) |
| OKLCH | oklch(41.6% 0.069 238.3) |
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 #23516D | 8.50:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #23516D | 2.46:1 | Fails | Lc 14.9 | Not readable |
| #23516D text on white | 8.50:1 | AAA | Lc 89.1 | Fine for body text |
| #23516D text on black | 2.46:1 | Fails | Lc -13.1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE6
oklch(88.5% 0.022 235)
-
Step 300
300
#A9C5D8
oklch(80.9% 0.041 237.7)
-
Step 400
400
#7BA7C4
oklch(70.7% 0.064 237.7)
-
Step 500
500
#5791B6
oklch(63.2% 0.083 238)
-
Step 600
600
#3B7AA1
oklch(55.5% 0.089 238.4)
-
Step 700
700
#2D678A
oklch(49.1% 0.082 238.2)
-
Step 800
800 (this color)
#23516D
oklch(41.6% 0.069 238.3)
-
Step 900
900
#24465B
oklch(37.8% 0.054 237.6)
-
Step 950
950
#162935
oklch(27.1% 0.033 237.5)
#23516D 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) | #44516E | 0.039 |
| Deuteranopia (no green cones) | #3A496D | 0.033 |
| Tritanopia (no blue cones) | #00585B | 0.047 |
| Achromatopsia (no color) | #4D4D4D | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23516D
#23516D
oklch(41.6% 0.069 238.3)
- #684224
#684224
oklch(41.6% 0.069 57.7)
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 #23516D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.036
- Dark Grey Blue #29465B ΔE 0.040
- Light Navy #155084 ΔE 0.040
- Deep Teal #00555A ΔE 0.044
- Petrol #005F6A ΔE 0.047
- YInMn Blue #415A77 ΔE 0.048
- Charcoal #264653 ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.050
Use #23516D 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.