#0B459A
Closest named color: Cobalt (#1E488F). oklch(41.1% 0.15 259.4), rgb(11, 69, 154).
Aa
White text reads best on this color (9.00:1).
About this color
#0B459A is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.150 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.024 away. White text reads best on it, at 9.00:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.33:1 |
| White text | 9.00:1 |
Values
| HEX | #0B459A |
| RGB | rgb(11, 69, 154) |
| HSL | hsl(216, 87%, 32%) |
| OKLCH | oklch(41.1% 0.15 259.4) |
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 #0B459A | 9.00:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #0B459A | 2.33:1 | Fails | Lc 14.0 | Not readable |
| #0B459A text on white | 9.00:1 | AAA | Lc 90.0 | Preferred for body text |
| #0B459A text on black | 2.33:1 | Fails | Lc -12.3 | 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
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C6DBFA
oklch(88.6% 0.048 258)
-
Step 300
300
#9FC2FA
oklch(80.9% 0.088 259.7)
-
Step 400
400
#6AA0F7
oklch(70.6% 0.14 259.6)
-
Step 500
500
#4086F4
oklch(63.2% 0.179 259.2)
-
Step 600
600
#1E6CE3
oklch(55.6% 0.196 259.5)
-
Step 700
700
#0F59C5
oklch(49% 0.182 259.4)
-
Step 800
800 (this color)
#0B459A
oklch(41.1% 0.15 259.4)
-
Step 900
900
#163F7E
oklch(37.7% 0.116 259.1)
-
Step 950
950
#0E254A
oklch(26.9% 0.075 259.5)
#0B459A 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) | #00509D | 0.029 |
| Deuteranopia (no green cones) | #004398 | 0.008 |
| Tritanopia (no blue cones) | #005A68 | 0.114 |
| Achromatopsia (no color) | #494949 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B459A
#0B459A
oklch(41.1% 0.15 259.4)
- #634400
#634400
oklch(41.1% 0.085 79.1)
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 #0B459A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.024
- Sapphire #2138AB ΔE 0.042
- Light Navy #155084 ΔE 0.052
- Dusk Blue #26538D ΔE 0.053
- Twilight Blue #0A437A ΔE 0.054
- Blueberry #464196 ΔE 0.060
- Deep Sea Blue #015482 ΔE 0.062
- Dark Slate Blue #483D8B ΔE 0.068
Use #0B459A 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.