#31596F
Closest named color: YInMn Blue (#415A77). oklch(44.4% 0.058 234.2), rgb(49, 89, 111).
Aa
White text reads best on this color (7.52:1).
About this color
#31596F is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.058 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.024 away. White text reads best on it, at 7.52:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.78:1 |
| White text | 7.52:1 |
Values
| HEX | #31596F |
| RGB | rgb(49, 89, 111) |
| HSL | hsl(201, 39%, 31%) |
| OKLCH | oklch(44.4% 0.058 234.2) |
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 #31596F | 7.52:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #31596F | 2.78:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #31596F text on white | 7.52:1 | AAA | Lc 86.0 | Fine for body text |
| #31596F text on black | 2.78:1 | Fails | Lc -16.0 | Dividers and decoration only |
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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CEDBE4
oklch(88.4% 0.019 237.8)
-
Step 300
300
#ACC5D4
oklch(81% 0.034 234.2)
-
Step 400
400
#80A7BE
oklch(70.8% 0.054 234.4)
-
Step 500
500
#5E91AD
oklch(63.1% 0.069 233.4)
-
Step 600
600
#437B99
oklch(55.7% 0.075 233.8)
-
Step 700
700
#346782
oklch(49% 0.07 233.8)
-
Step 800
800 (this color)
#31596F
oklch(44.4% 0.058 234.2)
-
Step 900
900
#284656
oklch(37.8% 0.045 233)
-
Step 950
950
#182932
oklch(27% 0.028 232.3)
#31596F 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) | #4F5870 | 0.038 |
| Deuteranopia (no green cones) | #46516F | 0.034 |
| Tritanopia (no blue cones) | #085F60 | 0.045 |
| Achromatopsia (no color) | #545454 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31596F
#31596F
oklch(44.4% 0.058 234.2)
- #6D4B34
#6D4B34
oklch(44.5% 0.058 54.7)
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 #31596F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.024
- Petrol #005F6A ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.041
- Dusty Grape #545775 ΔE 0.048
- Deep Sea Blue #015482 ΔE 0.048
- Deep Teal #00555A ΔE 0.051
- Dusk #4E5481 ΔE 0.053
- Denim #3B638C ΔE 0.053
Use #31596F 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.