#11527C
Closest named color: Deep Sea Blue (#015482). oklch(42.2% 0.093 243.1), rgb(17, 82, 124).
Aa
White text reads best on this color (8.32:1).
About this color
#11527C is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.093 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.011 away. White text reads best on it, at 8.32:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.52:1 |
| White text | 8.32:1 |
Values
| HEX | #11527C |
| RGB | rgb(17, 82, 124) |
| HSL | hsl(204, 76%, 28%) |
| OKLCH | oklch(42.2% 0.093 243.1) |
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 #11527C | 8.32:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #11527C | 2.52:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #11527C text on white | 8.32:1 | AAA | Lc 88.3 | Fine for body text |
| #11527C text on black | 2.52:1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C9DCEC
oklch(88.5% 0.03 243.4)
-
Step 300
300
#A3C5E2
oklch(80.8% 0.055 244.3)
-
Step 400
400
#6FA7D3
oklch(70.7% 0.087 243.1)
-
Step 500
500
#4690C7
oklch(63% 0.111 243.4)
-
Step 600
600
#217AB4
oklch(55.7% 0.121 242.9)
-
Step 700
700
#10669B
oklch(49.1% 0.113 243.2)
-
Step 800
800 (this color)
#11527C
oklch(42.2% 0.093 243.1)
-
Step 900
900
#194565
oklch(37.6% 0.073 243.7)
-
Step 950
950
#10293B
oklch(27.1% 0.046 242.4)
#11527C 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) | #3E537E | 0.042 |
| Deuteranopia (no green cones) | #2F4A7B | 0.031 |
| Tritanopia (no blue cones) | #005C61 | 0.063 |
| Achromatopsia (no color) | #4E4E4E | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #11527C
#11527C
oklch(42.2% 0.093 243.1)
- #704005
#704005
oklch(42.1% 0.093 63.1)
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 #11527C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.011
- Light Navy #155084 ΔE 0.016
- Dusk Blue #26538D ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.039
- Twilight Blue #0A437A ΔE 0.047
- Cobalt #1E488F ΔE 0.047
- YInMn Blue #415A77 ΔE 0.054
- Petrol #005F6A ΔE 0.058
Use #11527C 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.