#0C479E
Closest named color: Cobalt (#1E488F). oklch(41.9% 0.153 259.4), rgb(12, 71, 158).
Aa
White text reads best on this color (8.71:1).
About this color
#0C479E is a dark, vivid blue. In OKLCH its lightness is 42%, its chroma 0.153 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.027 away. White text reads best on it, at 8.71:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.41:1 |
| White text | 8.71:1 |
Values
| HEX | #0C479E |
| RGB | rgb(12, 71, 158) |
| HSL | hsl(216, 86%, 33%) |
| OKLCH | oklch(41.9% 0.153 259.4) |
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 #0C479E | 8.71:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #0C479E | 2.41:1 | Fails | Lc 14.8 | Not readable |
| #0C479E text on white | 8.71:1 | AAA | Lc 89.2 | Fine for body text |
| #0C479E text on black | 2.41:1 | Fails | Lc -13.0 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DBFB
oklch(88.6% 0.05 258.7)
-
Step 300
300
#9EC2FB
oklch(80.9% 0.09 259.4)
-
Step 400
400
#69A0F9
oklch(70.7% 0.144 259.6)
-
Step 500
500
#3F85F6
oklch(63.1% 0.183 259.6)
-
Step 600
600
#1B6CE5
oklch(55.7% 0.199 259.4)
-
Step 700
700
#0C59C7
oklch(49.2% 0.185 259.4)
-
Step 800
800 (this color)
#0C479E
oklch(41.9% 0.153 259.4)
-
Step 900
900
#153E7F
oklch(37.5% 0.119 259.5)
-
Step 950
950
#0E254B
oklch(27% 0.076 259.9)
#0C479E 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) | #0052A1 | 0.029 |
| Deuteranopia (no green cones) | #00459C | 0.009 |
| Tritanopia (no blue cones) | #005D6B | 0.117 |
| Achromatopsia (no color) | #4B4B4B | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0C479E
#0C479E
oklch(41.9% 0.153 259.4)
- #664600
#664600
oklch(41.9% 0.087 78.9)
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 #0C479E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.027
- Sapphire #2138AB ΔE 0.042
- Dusk Blue #26538D ΔE 0.051
- Light Navy #155084 ΔE 0.053
- Blueberry #464196 ΔE 0.059
- Twilight Blue #0A437A ΔE 0.060
- Deep Sea Blue #015482 ΔE 0.063
- Blue Blue #2242C7 ΔE 0.068
Use #0C479E 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.