#3156A1
Closest named color: Denim Blue (#3B5B92). oklch(46.7% 0.129 262.7), rgb(49, 86, 161).
Aa
White text reads best on this color (7.05:1).
About this color
#3156A1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.129 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.032 away. White text reads best on it, at 7.05:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 2.97:1 |
| White text | 7.05:1 |
Values
| HEX | #3156A1 |
| RGB | rgb(49, 86, 161) |
| HSL | hsl(220, 53%, 41%) |
| OKLCH | oklch(46.7% 0.129 262.7) |
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 #3156A1 | 7.05:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #3156A1 | 2.97:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #3156A1 text on white | 7.05:1 | AAA | Lc 84.2 | Fine for body text |
| #3156A1 text on black | 2.97:1 | Fails | Lc -17.8 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CDDAF1
oklch(88.6% 0.035 262)
-
Step 300
300
#ABC1EA
oklch(80.8% 0.063 262.8)
-
Step 400
400
#7FA0DF
oklch(70.6% 0.1 262.8)
-
Step 500
500
#5F88D6
oklch(63.2% 0.127 262.3)
-
Step 600
600
#4670C4
oklch(55.7% 0.139 262.7)
-
Step 700
700 (this color)
#3156A1
oklch(46.7% 0.129 262.7)
-
Step 800
800
#2E4C89
oklch(42.6% 0.108 262.9)
-
Step 900
900
#29406D
oklch(37.6% 0.083 262.6)
-
Step 950
950
#182640
oklch(27% 0.052 262)
#3156A1 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) | #305EA4 | 0.022 |
| Deuteranopia (no green cones) | #1A549F | 0.021 |
| Tritanopia (no blue cones) | #006773 | 0.104 |
| Achromatopsia (no color) | #595959 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3156A1
#3156A1
oklch(46.7% 0.129 262.7)
- #745400
#745400
oklch(46.7% 0.096 83)
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 #3156A1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.032
- Dusk Blue #26538D ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.045
- Dusky Blue #475F94 ΔE 0.046
- Twilight #4E518B ΔE 0.048
- Cobalt #1E488F ΔE 0.053
- Light Navy #155084 ΔE 0.057
- Denim #3B638C ΔE 0.058
Use #3156A1 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.