#315771
Closest named color: YInMn Blue (#415A77). oklch(44% 0.061 240), rgb(49, 87, 113).
Aa
White text reads best on this color (7.68:1).
About this color
#315771 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.061 and its hue 240°. 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 7.68:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.73:1 |
| White text | 7.68:1 |
Values
| HEX | #315771 |
| RGB | rgb(49, 87, 113) |
| HSL | hsl(204, 40%, 32%) |
| OKLCH | oklch(44% 0.061 240) |
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 #315771 | 7.68:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #315771 | 2.73:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #315771 text on white | 7.68:1 | AAA | Lc 86.6 | Fine for body text |
| #315771 text on black | 2.73:1 | Fails | Lc -15.5 | 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
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CEDBE5
oklch(88.5% 0.02 240.8)
-
Step 300
300
#ADC4D6
oklch(80.9% 0.036 241.6)
-
Step 400
400
#80A6C1
oklch(70.7% 0.057 239.5)
-
Step 500
500
#5F90B1
oklch(63.1% 0.073 238.9)
-
Step 600
600
#45799D
oklch(55.5% 0.079 240.5)
-
Step 700
700
#366686
oklch(49.1% 0.073 239.8)
-
Step 800
800 (this color)
#315771
oklch(44% 0.061 240)
-
Step 900
900
#294558
oklch(37.7% 0.047 239.4)
-
Step 950
950
#182834
oklch(26.8% 0.031 241.7)
#315771 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) | #4B5772 | 0.033 |
| Deuteranopia (no green cones) | #435071 | 0.029 |
| Tritanopia (no blue cones) | #065D60 | 0.048 |
| Achromatopsia (no color) | #535353 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #315771
#315771
oklch(44% 0.061 240)
- #6B4A2F
#6B4A2F
oklch(43.9% 0.06 59.6)
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 #315771, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.024
- Light Navy Blue #2E5A88 ΔE 0.037
- Petrol #005F6A ΔE 0.040
- Deep Sea Blue #015482 ΔE 0.043
- Dusty Grape #545775 ΔE 0.047
- Light Navy #155084 ΔE 0.049
- Dusk #4E5481 ΔE 0.049
- Dusk Blue #26538D ΔE 0.052
Use #315771 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.