#23516C
Closest named color: Deep Sea Blue (#015482). oklch(41.6% 0.067 237.3), rgb(35, 81, 108).
Aa
White text reads best on this color (8.51:1).
About this color
#23516C is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.067 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.038 away. White text reads best on it, at 8.51:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.46:1 |
| White text | 8.51:1 |
Values
| HEX | #23516C |
| RGB | rgb(35, 81, 108) |
| HSL | hsl(202, 51%, 28%) |
| OKLCH | oklch(41.6% 0.067 237.3) |
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 #23516C | 8.51:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #23516C | 2.46:1 | Fails | Lc 14.9 | Not readable |
| #23516C text on white | 8.51:1 | AAA | Lc 89.1 | Fine for body text |
| #23516C 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
#AAC5D7
oklch(80.9% 0.039 237.2)
-
Step 400
400
#7BA7C3
oklch(70.7% 0.063 236.7)
-
Step 500
500
#5891B4
oklch(63.1% 0.08 236.9)
-
Step 600
600
#3B7BA0
oklch(55.7% 0.087 236.6)
-
Step 700
700
#2D6789
oklch(49.1% 0.081 237.4)
-
Step 800
800 (this color)
#23516C
oklch(41.6% 0.067 237.3)
-
Step 900
900
#24465A
oklch(37.8% 0.052 236.3)
-
Step 950
950
#162935
oklch(27.1% 0.033 237.5)
#23516C 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) | #44516D | 0.039 |
| Deuteranopia (no green cones) | #3A496C | 0.033 |
| Tritanopia (no blue cones) | #00585A | 0.047 |
| Achromatopsia (no color) | #4D4D4D | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23516C
#23516C
oklch(41.6% 0.067 237.3)
- #674225
#674225
oklch(41.5% 0.067 57.6)
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 #23516C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.039
- Light Navy #155084 ΔE 0.042
- Deep Teal #00555A ΔE 0.042
- Petrol #005F6A ΔE 0.047
- Charcoal #264653 ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.048
- YInMn Blue #415A77 ΔE 0.049
Use #23516C 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.