#2857A6
Closest named color: Denim Blue (#3B5B92). oklch(46.8% 0.137 260.2), rgb(40, 87, 166).
Aa
White text reads best on this color (6.99:1).
About this color
#2857A6 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.137 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.041 away. White text reads best on it, at 6.99:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.00:1 |
| White text | 6.99:1 |
Values
| HEX | #2857A6 |
| RGB | rgb(40, 87, 166) |
| HSL | hsl(218, 61%, 40%) |
| OKLCH | oklch(46.8% 0.137 260.2) |
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 #2857A6 | 6.99:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #2857A6 | 3.00:1 | AA large text | Lc 20.2 | Dividers and decoration only |
| #2857A6 text on white | 6.99:1 | AA | Lc 83.8 | Fine for body text |
| #2857A6 text on black | 3.00:1 | AA large text | Lc -18.1 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CBDAF2
oklch(88.5% 0.037 259.8)
-
Step 300
300
#A8C2EC
oklch(80.9% 0.066 259.9)
-
Step 400
400
#79A1E3
oklch(70.6% 0.107 260.1)
-
Step 500
500
#5788DB
oklch(63% 0.136 260.4)
-
Step 600
600
#3C70C8
oklch(55.5% 0.148 260.2)
-
Step 700
700 (this color)
#2857A6
oklch(46.8% 0.137 260.2)
-
Step 800
800
#274D8C
oklch(42.7% 0.113 259.9)
-
Step 900
900
#244170
oklch(37.8% 0.088 259.6)
-
Step 950
950
#162642
oklch(27% 0.057 260.9)
#2857A6 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) | #2C5FA9 | 0.023 |
| Deuteranopia (no green cones) | #0A54A4 | 0.021 |
| Tritanopia (no blue cones) | #006A76 | 0.109 |
| Achromatopsia (no color) | #595959 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2857A6
#2857A6
oklch(46.8% 0.137 260.2)
- #765300
#765300
oklch(46.8% 0.097 80.4)
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 #2857A6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.041
- Dusk Blue #26538D ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.053
- Mid Blue #276AB3 ΔE 0.054
- Cobalt #1E488F ΔE 0.056
- Peacock Blue #016795 ΔE 0.059
- Twilight #4E518B ΔE 0.059
Use #2857A6 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.