#313662
Closest named color: Prussian Blue (#1D3557). oklch(35.1% 0.076 276.8), rgb(49, 54, 98).
Aa
White text reads best on this color (11.44:1).
About this color
#313662 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.076 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.035 away. White text reads best on it, at 11.44:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.83:1 |
| White text | 11.44:1 |
Values
| HEX | #313662 |
| RGB | rgb(49, 54, 98) |
| HSL | hsl(234, 33%, 29%) |
| OKLCH | oklch(35.1% 0.076 276.8) |
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 #313662 | 11.44:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #313662 | 1.83:1 | Fails | Lc 7.6 | Not readable |
| #313662 text on white | 11.44:1 | AAA | Lc 96.3 | Preferred for body text |
| #313662 text on black | 1.83:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D3D8EF
oklch(88.5% 0.032 276)
-
Step 300
300
#B7BEE6
oklch(80.9% 0.057 277.3)
-
Step 400
400
#929CDA
oklch(70.8% 0.091 276.7)
-
Step 500
500
#7882CF
oklch(63.1% 0.116 276.9)
-
Step 600
600
#616ABC
oklch(55.5% 0.127 276.7)
-
Step 700
700
#5158A3
oklch(49.2% 0.119 277.1)
-
Step 800
800
#424884
oklch(42.7% 0.099 277)
-
Step 900
900 (this color)
#313662
oklch(35.1% 0.076 276.8)
-
Step 950
950
#20243E
oklch(27% 0.049 276)
#313662 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) | #253C64 | 0.022 |
| Deuteranopia (no green cones) | #213861 | 0.022 |
| Tritanopia (no blue cones) | #1F3F47 | 0.067 |
| Achromatopsia (no color) | #3A3A3A | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #313662
#313662
oklch(35.1% 0.076 276.8)
- #463A00
#463A00
oklch(35.1% 0.072 96)
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 #313662, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.035
- Marine Blue #01386A ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.055
- Twilight Blue #0A437A ΔE 0.058
- Marine #042E60 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.060
- Gunmetal #293241 ΔE 0.060
Use #313662 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.