#31426C
Closest named color: Dark Grey Blue (#29465B). oklch(38.6% 0.075 266.3), rgb(49, 66, 108).
Aa
White text reads best on this color (9.87:1).
About this color
#31426C is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.075 and its hue 266°. 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 9.87:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.12:1 |
| White text | 9.87:1 |
Values
| HEX | #31426C |
| RGB | rgb(49, 66, 108) |
| HSL | hsl(223, 38%, 31%) |
| OKLCH | oklch(38.6% 0.075 266.3) |
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 #31426C | 9.87:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #31426C | 2.12:1 | Fails | Lc 11.1 | Not readable |
| #31426C text on white | 9.87:1 | AAA | Lc 92.8 | Preferred for body text |
| #31426C text on black | 2.12:1 | Fails | Lc -9.7 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#CFD9EF
oklch(88.4% 0.032 266.1)
-
Step 300
300
#B0C0E6
oklch(80.8% 0.057 267.2)
-
Step 400
400
#869FDA
oklch(70.6% 0.091 266.4)
-
Step 500
500
#6987CF
oklch(63.2% 0.114 266)
-
Step 600
600
#516FBC
oklch(55.5% 0.125 266.4)
-
Step 700
700
#425DA2
oklch(49.2% 0.115 266.2)
-
Step 800
800
#364C84
oklch(42.7% 0.097 266.2)
-
Step 900
900 (this color)
#31426C
oklch(38.6% 0.075 266.3)
-
Step 950
950
#1C263E
oklch(27.2% 0.047 266.1)
#31426C 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) | #31466E | 0.012 |
| Deuteranopia (no green cones) | #2B416B | 0.009 |
| Tritanopia (no blue cones) | #154B52 | 0.067 |
| Achromatopsia (no color) | #434343 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31426C
#31426C
oklch(38.6% 0.075 266.3)
- #554006
#554006
oklch(38.4% 0.075 86.3)
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 #31426C, 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 0.040
- Charcoal #264653 ΔE 0.051
- Light Navy #155084 ΔE 0.054
- Marine Blue #01386A ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.059
- Cobalt #1E488F ΔE 0.060
- Deep Sea Blue #015482 ΔE 0.062
Use #31426C 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.