#31485F
Closest named color: Dark Grey Blue (#29465B). oklch(39.3% 0.049 249.2), rgb(49, 72, 95).
Aa
White text reads best on this color (9.44:1).
About this color
#31485F is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.049 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.014 away. White text reads best on it, at 9.44:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.22:1 |
| White text | 9.44:1 |
Values
| HEX | #31485F |
| RGB | rgb(49, 72, 95) |
| HSL | hsl(210, 32%, 28%) |
| OKLCH | oklch(39.3% 0.049 249.2) |
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 #31485F | 9.44:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #31485F | 2.22:1 | Fails | Lc 12.2 | Not readable |
| #31485F text on white | 9.44:1 | AAA | Lc 91.8 | Preferred for body text |
| #31485F text on black | 2.22:1 | Fails | Lc -10.6 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EBF1
oklch(93.7% 0.01 247.9)
-
Step 200
200
#CFDBE6
oklch(88.6% 0.02 245.7)
-
Step 300
300
#AFC3D8
oklch(80.9% 0.037 249.6)
-
Step 400
400
#85A4C4
oklch(70.7% 0.058 249.5)
-
Step 500
500
#668DB5
oklch(63% 0.075 249.7)
-
Step 600
600
#4C77A1
oklch(55.6% 0.081 248.9)
-
Step 700
700
#3D648A
oklch(49.1% 0.076 249)
-
Step 800
800
#335270
oklch(42.8% 0.062 248.7)
-
Step 900
900 (this color)
#31485F
oklch(39.3% 0.049 249.2)
-
Step 950
950
#1B2835
oklch(27.1% 0.03 249)
#31485F 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) | #3F4960 | 0.020 |
| Deuteranopia (no green cones) | #39445F | 0.016 |
| Tritanopia (no blue cones) | #1E4D50 | 0.041 |
| Achromatopsia (no color) | #464646 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31485F
#31485F
oklch(39.3% 0.049 249.2)
- #574128
#574128
oklch(39.3% 0.049 69.2)
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 #31485F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.014
- Charcoal #264653 ΔE 0.026
- Dark Slate Gray #2F4F4F ΔE 0.041
- Charcoal Grey #3C4142 ΔE 0.049
- Dark Teal #014D4E ΔE 0.054
- Deep Teal #00555A ΔE 0.054
- Dark Blue Grey #1F3B4D ΔE 0.055
- Onyx #343A40 ΔE 0.059
Use #31485F 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.