#0A58AD
Closest named color: Dusk Blue (#26538D). oklch(46.9% 0.152 255.8), rgb(10, 88, 173).
Aa
White text reads best on this color (6.97:1).
About this color
#0A58AD is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.152 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.052 away. White text reads best on it, at 6.97:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 3.01:1 |
| White text | 6.97:1 |
Values
| HEX | #0A58AD |
| RGB | rgb(10, 88, 173) |
| HSL | hsl(211, 89%, 36%) |
| OKLCH | oklch(46.9% 0.152 255.8) |
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 #0A58AD | 6.97:1 | AA | Lc -88.5 | Fine for body text |
| Black text on #0A58AD | 3.01:1 | AA large text | Lc 20.6 | Dividers and decoration only |
| #0A58AD text on white | 6.97:1 | AA | Lc 83.5 | Fine for body text |
| #0A58AD text on black | 3.01:1 | AA large text | Lc -18.5 | 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 700.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C8DBF5
oklch(88.5% 0.041 256.2)
-
Step 300
300
#A2C3F0
oklch(80.9% 0.073 256.2)
-
Step 400
400
#6EA3E9
oklch(70.7% 0.118 255.8)
-
Step 500
500
#458AE2
oklch(63.1% 0.15 255.7)
-
Step 600
600
#2372D0
oklch(55.6% 0.163 255.6)
-
Step 700
700 (this color)
#0A58AD
oklch(46.9% 0.152 255.8)
-
Step 800
800
#154E92
oklch(42.7% 0.126 255.7)
-
Step 900
900
#194174
oklch(37.6% 0.098 256)
-
Step 950
950
#102744
oklch(27.1% 0.062 255.3)
#0A58AD 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) | #2461B0 | 0.031 |
| Deuteranopia (no green cones) | #0053AB | 0.015 |
| Tritanopia (no blue cones) | #006D7A | 0.115 |
| Achromatopsia (no color) | #595959 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A58AD
#0A58AD
oklch(46.9% 0.152 255.8)
- #7A5100
#7A5100
oklch(46.9% 0.099 75.3)
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 #0A58AD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.052
- Mid Blue #276AB3 ΔE 0.055
- Denim Blue #3B5B92 ΔE 0.056
- Cobalt #1E488F ΔE 0.061
- Peacock Blue #016795 ΔE 0.063
- Light Navy Blue #2E5A88 ΔE 0.064
- Blue Blue #2242C7 ΔE 0.067
- Light Navy #155084 ΔE 0.068
Use #0A58AD 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.