#313267
Closest named color: Prussian Blue (#1D3557). oklch(34.6% 0.091 279.7), rgb(49, 50, 103).
Aa
White text reads best on this color (11.77:1).
About this color
#313267 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.091 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.042 away. White text reads best on it, at 11.77:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.78:1 |
| White text | 11.77:1 |
Values
| HEX | #313267 |
| RGB | rgb(49, 50, 103) |
| HSL | hsl(239, 36%, 30%) |
| OKLCH | oklch(34.6% 0.091 279.7) |
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 #313267 | 11.77:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #313267 | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #313267 text on white | 11.77:1 | AAA | Lc 96.9 | Preferred for body text |
| #313267 text on black | 1.78:1 | Fails | Lc 0.0 | Not readable |
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 900.
-
Step 50
50
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D3D7F2
oklch(88.4% 0.037 278.9)
-
Step 300
300
#B7BDED
oklch(81% 0.068 279.2)
-
Step 400
400
#9399E3
oklch(70.7% 0.108 279.7)
-
Step 500
500
#7A7EDB
oklch(63.1% 0.138 279.8)
-
Step 600
600
#6465C9
oklch(55.6% 0.151 279.8)
-
Step 700
700
#5353AE
oklch(49.1% 0.142 279.8)
-
Step 800
800
#44458D
oklch(42.8% 0.116 279.7)
-
Step 900
900 (this color)
#313267
oklch(34.6% 0.091 279.7)
-
Step 950
950
#212342
oklch(27.1% 0.057 279.1)
#313267 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) | #1A3A69 | 0.034 |
| Deuteranopia (no green cones) | #163666 | 0.035 |
| Tritanopia (no blue cones) | #1C3D47 | 0.079 |
| Achromatopsia (no color) | #383838 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #313267
#313267
oklch(34.6% 0.091 279.7)
- #423A00
#423A00
oklch(34.6% 0.072 100.7)
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 #313267, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.042
- Marine Blue #01386A ΔE 0.047
- Marine #042E60 ΔE 0.056
- Twilight Blue #0A437A ΔE 0.061
- Dark Blue Grey #1F3B4D ΔE 0.064
- Space Cadet #2B2D42 ΔE 0.067
- Dark Grey Blue #29465B ΔE 0.070
- Gunmetal #293241 ΔE 0.070
Use #313267 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.