#0B4EAE
Closest named color: Blue Blue (#2242C7). oklch(44.7% 0.166 259.3), rgb(11, 78, 174).
Aa
White text reads best on this color (7.73:1).
About this color
#0B4EAE is a dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.166 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.049 away. White text reads best on it, at 7.73:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.71:1 |
| White text | 7.73:1 |
Values
| HEX | #0B4EAE |
| RGB | rgb(11, 78, 174) |
| HSL | hsl(215, 88%, 36%) |
| OKLCH | oklch(44.7% 0.166 259.3) |
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 #0B4EAE | 7.73:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #0B4EAE | 2.71:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #0B4EAE text on white | 7.73:1 | AAA | Lc 86.1 | Fine for body text |
| #0B4EAE text on black | 2.71:1 | Fails | Lc -15.9 | Dividers and decoration only |
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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C4DBFD
oklch(88.5% 0.053 258)
-
Step 300
300
#9BC2FF
oklch(80.8% 0.097 259.2)
-
Step 400
400
#64A0FF
oklch(70.8% 0.153 259.2)
-
Step 500
500
#3584FE
oklch(63.1% 0.198 259.2)
-
Step 600
600
#0569EE
oklch(55.5% 0.216 259.4)
-
Step 700
700
#0058CB
oklch(49.1% 0.193 259.2)
-
Step 800
800 (this color)
#0B4EAE
oklch(44.7% 0.166 259.3)
-
Step 900
900
#0F3E84
oklch(37.8% 0.128 259)
-
Step 950
950
#0B254E
oklch(27.1% 0.082 259.4)
#0B4EAE 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) | #005AB1 | 0.031 |
| Deuteranopia (no green cones) | #004CAC | 0.008 |
| Tritanopia (no blue cones) | #006676 | 0.126 |
| Achromatopsia (no color) | #535353 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B4EAE
#0B4EAE
oklch(44.7% 0.166 259.3)
- #704D00
#704D00
oklch(44.7% 0.093 78.6)
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 #0B4EAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.049
- Sapphire #2138AB ΔE 0.051
- Cobalt #1E488F ΔE 0.051
- Dusk Blue #26538D ΔE 0.059
- Blueberry #464196 ΔE 0.069
- Light Navy #155084 ΔE 0.070
- Denim Blue #3B5B92 ΔE 0.074
- Majorelle Blue #3F37C9 ΔE 0.074
Use #0B4EAE 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.