#23536E
Closest named color: Deep Sea Blue (#015482). oklch(42.2% 0.069 236.3), rgb(35, 83, 110).
Aa
White text reads best on this color (8.28:1).
About this color
#23536E is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.069 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.035 away. White text reads best on it, at 8.28:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.53:1 |
| White text | 8.28:1 |
Values
| HEX | #23536E |
| RGB | rgb(35, 83, 110) |
| HSL | hsl(202, 52%, 28%) |
| OKLCH | oklch(42.2% 0.069 236.3) |
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 #23536E | 8.28:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #23536E | 2.53:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #23536E text on white | 8.28:1 | AAA | Lc 88.4 | Fine for body text |
| #23536E 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
#A9C5D7
oklch(80.8% 0.04 236.2)
-
Step 400
400
#7AA7C4
oklch(70.7% 0.064 237.1)
-
Step 500
500
#5691B5
oklch(63.1% 0.082 236.9)
-
Step 600
600
#397BA1
oklch(55.7% 0.089 236.7)
-
Step 700
700
#2A6789
oklch(49% 0.083 236.4)
-
Step 800
800 (this color)
#23536E
oklch(42.2% 0.069 236.3)
-
Step 900
900
#23465A
oklch(37.7% 0.053 235.6)
-
Step 950
950
#152935
oklch(27% 0.034 236.3)
#23536E 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) | #46526F | 0.041 |
| Deuteranopia (no green cones) | #3C4B6E | 0.035 |
| Tritanopia (no blue cones) | #005A5C | 0.047 |
| Achromatopsia (no color) | #4E4E4E | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23536E
#23536E
oklch(42.2% 0.069 236.3)
- #6A4326
#6A4326
oklch(42.1% 0.069 56.2)
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 #23536E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.035
- Light Navy #155084 ΔE 0.041
- Petrol #005F6A ΔE 0.042
- Deep Teal #00555A ΔE 0.043
- YInMn Blue #415A77 ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.047
- Dark Slate Gray #2F4F4F ΔE 0.050
Use #23536E 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.