#23536F
Closest named color: Deep Sea Blue (#015482). oklch(42.2% 0.07 237.3), rgb(35, 83, 111).
Aa
White text reads best on this color (8.27:1).
About this color
#23536F is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.070 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.034 away. White text reads best on it, at 8.27:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.53:1 |
| White text | 8.27:1 |
Values
| HEX | #23536F |
| RGB | rgb(35, 83, 111) |
| HSL | hsl(202, 52%, 29%) |
| OKLCH | oklch(42.2% 0.07 237.3) |
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 #23536F | 8.27:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #23536F | 2.53:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #23536F text on white | 8.27:1 | AAA | Lc 88.4 | Fine for body text |
| #23536F text on black | 2.53:1 | Fails | Lc -13.8 | 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
#7AA7C5
oklch(70.7% 0.065 238.1)
-
Step 500
500
#5691B6
oklch(63.1% 0.083 237.6)
-
Step 600
600
#387BA2
oklch(55.7% 0.091 237.1)
-
Step 700
700
#2A678A
oklch(49% 0.084 237.2)
-
Step 800
800 (this color)
#23536F
oklch(42.2% 0.07 237.3)
-
Step 900
900
#23465B
oklch(37.8% 0.054 236.9)
-
Step 950
950
#152935
oklch(27% 0.034 236.3)
#23536F 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) | #465370 | 0.041 |
| Deuteranopia (no green cones) | #3B4B6F | 0.034 |
| Tritanopia (no blue cones) | #005A5C | 0.048 |
| Achromatopsia (no color) | #4E4E4E | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23536F
#23536F
oklch(42.2% 0.07 237.3)
- #6A4325
#6A4325
oklch(42.1% 0.07 57)
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 #23536F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.034
- Light Navy #155084 ΔE 0.040
- Petrol #005F6A ΔE 0.043
- YInMn Blue #415A77 ΔE 0.043
- Deep Teal #00555A ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.046
- Dusk Blue #26538D ΔE 0.051
Use #23536F 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.