#31476F
Closest named color: Dark Grey Blue (#29465B). oklch(39.9% 0.073 261.7), rgb(49, 71, 111).
Aa
White text reads best on this color (9.28:1).
About this color
#31476F is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.073 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.037 away. White text reads best on it, at 9.28:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.26:1 |
| White text | 9.28:1 |
Values
| HEX | #31476F |
| RGB | rgb(49, 71, 111) |
| HSL | hsl(219, 39%, 31%) |
| OKLCH | oklch(39.9% 0.073 261.7) |
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 #31476F | 9.28:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #31476F | 2.26:1 | Fails | Lc 12.6 | Not readable |
| #31476F text on white | 9.28:1 | AAA | Lc 91.3 | Preferred for body text |
| #31476F text on black | 2.26:1 | Fails | Lc -11.0 | 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
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEE
oklch(88.5% 0.03 260.7)
-
Step 300
300
#ADC1E5
oklch(80.8% 0.056 262.2)
-
Step 400
400
#82A1D8
oklch(70.7% 0.088 261.6)
-
Step 500
500
#6389CD
oklch(63.1% 0.112 261.5)
-
Step 600
600
#4A71BA
oklch(55.5% 0.122 261.9)
-
Step 700
700
#3B5FA1
oklch(49.2% 0.114 261.5)
-
Step 800
800
#314E82
oklch(42.8% 0.093 261.3)
-
Step 900
900 (this color)
#31476F
oklch(39.9% 0.073 261.7)
-
Step 950
950
#1A263D
oklch(27% 0.046 262.7)
#31476F 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) | #374A71 | 0.013 |
| Deuteranopia (no green cones) | #30446E | 0.009 |
| Tritanopia (no blue cones) | #105056 | 0.066 |
| Achromatopsia (no color) | #474747 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31476F
#31476F
oklch(39.9% 0.073 261.7)
- #5B4310
#5B4310
oklch(39.9% 0.073 82)
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 #31476F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.037
- Twilight Blue #0A437A ΔE 0.042
- Light Navy #155084 ΔE 0.043
- Deep Sea Blue #015482 ΔE 0.050
- Charcoal #264653 ΔE 0.051
- Dusk Blue #26538D ΔE 0.055
- Cobalt #1E488F ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.063
Use #31476F 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.