#31425F
Closest named color: Dark Grey Blue (#29465B). oklch(37.8% 0.055 260.8), rgb(49, 66, 95).
Aa
White text reads best on this color (10.11:1).
About this color
#31425F is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.055 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.019 away. White text reads best on it, at 10.11:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.07:1 |
| White text | 10.11:1 |
Values
| HEX | #31425F |
| RGB | rgb(49, 66, 95) |
| HSL | hsl(218, 32%, 28%) |
| OKLCH | oklch(37.8% 0.055 260.8) |
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 #31425F | 10.11:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #31425F | 2.07:1 | Fails | Lc 10.5 | Not readable |
| #31425F text on white | 10.11:1 | AAA | Lc 93.4 | Preferred for body text |
| #31425F text on black | 2.07:1 | Fails | Lc -9.1 | 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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D1DAE9
oklch(88.6% 0.023 260.7)
-
Step 300
300
#B2C2DC
oklch(81% 0.041 260.1)
-
Step 400
400
#89A2CA
oklch(70.8% 0.065 259.7)
-
Step 500
500
#6C8ABC
oklch(63.1% 0.083 260.4)
-
Step 600
600
#5473A9
oklch(55.5% 0.092 261)
-
Step 700
700
#456191
oklch(49.2% 0.084 260.7)
-
Step 800
800
#394F75
oklch(42.7% 0.069 260.9)
-
Step 900
900 (this color)
#31425F
oklch(37.8% 0.055 260.8)
-
Step 950
950
#1D2737
oklch(27.1% 0.033 259.6)
#31425F 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) | #374460 | 0.011 |
| Deuteranopia (no green cones) | #32405E | 0.006 |
| Tritanopia (no blue cones) | #1F484C | 0.049 |
| Achromatopsia (no color) | #424242 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31425F
#31425F
oklch(37.8% 0.055 260.8)
- #513F1E
#513F1E
oklch(37.9% 0.055 81)
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 #31425F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.019
- Charcoal #264653 ΔE 0.031
- Dark Blue Grey #1F3B4D ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.052
- Onyx #343A40 ΔE 0.053
- Twilight Blue #0A437A ΔE 0.055
- Dark Slate Gray #2F4F4F ΔE 0.057
Use #31425F 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.