#0857A5
Closest named color: Dusk Blue (#26538D). oklch(46% 0.143 254.3), rgb(8, 87, 165).
Aa
White text reads best on this color (7.19:1).
About this color
#0857A5 is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.143 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.040 away. White text reads best on it, at 7.19:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.91:1 |
| White text | 7.19:1 |
Values
| HEX | #0857A5 |
| RGB | rgb(8, 87, 165) |
| HSL | hsl(210, 91%, 34%) |
| OKLCH | oklch(46% 0.143 254.3) |
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 #0857A5 | 7.19:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #0857A5 | 2.91:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #0857A5 text on white | 7.19:1 | AAA | Lc 84.4 | Fine for body text |
| #0857A5 text on black | 2.91:1 | Fails | Lc -17.6 | 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
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF3
oklch(88.5% 0.039 254.3)
-
Step 300
300
#A2C4ED
oklch(81% 0.069 253.4)
-
Step 400
400
#6FA4E4
oklch(70.8% 0.11 253.8)
-
Step 500
500
#478BDD
oklch(63.1% 0.142 254.5)
-
Step 600
600
#2573CA
oklch(55.5% 0.154 254.3)
-
Step 700
700 (this color)
#0857A5
oklch(46% 0.143 254.3)
-
Step 800
800
#174F8E
oklch(42.7% 0.119 254.5)
-
Step 900
900
#1A4271
oklch(37.7% 0.092 254.4)
-
Step 950
950
#102742
oklch(27% 0.058 253.9)
#0857A5 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) | #2A5EA8 | 0.030 |
| Deuteranopia (no green cones) | #0051A3 | 0.018 |
| Tritanopia (no blue cones) | #006A76 | 0.106 |
| Achromatopsia (no color) | #575757 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0857A5
#0857A5
oklch(46% 0.143 254.3)
- #784E00
#784E00
oklch(46% 0.098 73.6)
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 #0857A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.050
- Cobalt #1E488F ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.054
- Light Navy #155084 ΔE 0.055
- Peacock Blue #016795 ΔE 0.057
- Deep Sea Blue #015482 ΔE 0.058
- Mid Blue #276AB3 ΔE 0.061
Use #0857A5 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.