#0C4088
Closest named color: Twilight Blue (#0A437A). oklch(38.5% 0.132 258.4), rgb(12, 64, 136).
Aa
White text reads best on this color (9.97:1).
About this color
#0C4088 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.132 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.026 away. White text reads best on it, at 9.97:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.10:1 |
| White text | 9.97:1 |
Values
| HEX | #0C4088 |
| RGB | rgb(12, 64, 136) |
| HSL | hsl(215, 84%, 29%) |
| OKLCH | oklch(38.5% 0.132 258.4) |
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 #0C4088 | 9.97:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #0C4088 | 2.10:1 | Fails | Lc 11.4 | Not readable |
| #0C4088 text on white | 9.97:1 | AAA | Lc 92.6 | Preferred for body text |
| #0C4088 text on black | 2.10:1 | Fails | Lc -9.9 | 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 900.
-
Step 50
50
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFD
oklch(93.6% 0.028 256.5)
-
Step 200
200
#C3DBFE
oklch(88.5% 0.055 257.7)
-
Step 300
300
#9AC2FF
oklch(80.8% 0.097 258.7)
-
Step 400
400
#61A0FF
oklch(70.6% 0.154 258.4)
-
Step 500
500
#2F84FF
oklch(63% 0.2 258.5)
-
Step 600
600
#006BEA
oklch(55.6% 0.209 258.4)
-
Step 700
700
#005AC7
oklch(49.2% 0.185 258.3)
-
Step 800
800
#0049A4
oklch(42.7% 0.16 258.3)
-
Step 900
900 (this color)
#0C4088
oklch(38.5% 0.132 258.4)
-
Step 950
950
#08254E
oklch(27% 0.083 258)
#0C4088 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) | #0D488B | 0.023 |
| Deuteranopia (no green cones) | #003D87 | 0.011 |
| Tritanopia (no blue cones) | #00525D | 0.101 |
| Achromatopsia (no color) | #424242 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C4088
#0C4088
oklch(38.5% 0.132 258.4)
- #5B3D00
#5B3D00
oklch(38.5% 0.08 77.5)
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 #0C4088, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.026
- Cobalt #1E488F ΔE 0.030
- Light Navy #155084 ΔE 0.049
- Marine Blue #01386A ΔE 0.056
- Deep Sea Blue #015482 ΔE 0.061
- Dusk Blue #26538D ΔE 0.061
- Sapphire #2138AB ΔE 0.063
- Dark Slate Blue #483D8B ΔE 0.068
Use #0C4088 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.