#313E96
Closest named color: Blueberry (#464196). oklch(40.7% 0.144 272), rgb(49, 62, 150).
Aa
White text reads best on this color (9.29:1).
About this color
#313E96 is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.144 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.033 away. White text reads best on it, at 9.29:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.26:1 |
| White text | 9.29:1 |
Values
| HEX | #313E96 |
| RGB | rgb(49, 62, 150) |
| HSL | hsl(232, 51%, 39%) |
| OKLCH | oklch(40.7% 0.144 272) |
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 #313E96 | 9.29:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #313E96 | 2.26:1 | Fails | Lc 12.9 | Not readable |
| #313E96 text on white | 9.29:1 | AAA | Lc 91.0 | Preferred for body text |
| #313E96 text on black | 2.26:1 | Fails | Lc -11.3 | 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 800.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CED8F9
oklch(88.5% 0.047 272.1)
-
Step 300
300
#ADBEF8
oklch(80.9% 0.084 271.8)
-
Step 400
400
#849AF4
oklch(70.7% 0.134 272.2)
-
Step 500
500
#677EF0
oklch(63.1% 0.172 272)
-
Step 600
600
#5064DF
oklch(55.6% 0.187 271.9)
-
Step 700
700
#4152C1
oklch(49.1% 0.174 271.8)
-
Step 800
800 (this color)
#313E96
oklch(40.7% 0.144 272)
-
Step 900
900
#2E3A7C
oklch(37.6% 0.112 272.2)
-
Step 950
950
#1B2349
oklch(27.1% 0.071 272)
#313E96 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) | #004C99 | 0.045 |
| Deuteranopia (no green cones) | #004394 | 0.037 |
| Tritanopia (no blue cones) | #005364 | 0.117 |
| Achromatopsia (no color) | #474747 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #313E96
#313E96
oklch(40.7% 0.144 272)
- #5A4800
#5A4800
oklch(40.9% 0.084 92.4)
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 #313E96, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.033
- Cobalt #1E488F ΔE 0.033
- Dark Slate Blue #483D8B ΔE 0.039
- Sapphire #2138AB ΔE 0.042
- Dusk Blue #26538D ΔE 0.061
- Twilight Blue #0A437A ΔE 0.061
- Light Navy #155084 ΔE 0.063
- Twilight #4E518B ΔE 0.074
Use #313E96 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.