#315E7B
Closest named color: YInMn Blue (#415A77). oklch(46.3% 0.069 238.9), rgb(49, 94, 123).
Aa
White text reads best on this color (6.95:1).
About this color
#315E7B is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.069 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.019 away. White text reads best on it, at 6.95:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.01:1 |
| White text | 6.95:1 |
Values
| HEX | #315E7B |
| RGB | rgb(49, 94, 123) |
| HSL | hsl(204, 43%, 34%) |
| OKLCH | oklch(46.3% 0.069 238.9) |
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 #315E7B | 6.95:1 | AA | Lc -88.9 | Fine for body text |
| Black text on #315E7B | 3.01:1 | AA large text | Lc 20.1 | Dividers and decoration only |
| #315E7B text on white | 6.95:1 | AA | Lc 83.9 | Fine for body text |
| #315E7B text on black | 3.01:1 | AA large text | Lc -18.0 | 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 700.
-
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
#CFDBE4
oklch(88.5% 0.018 240)
-
Step 300
300
#AEC4D4
oklch(80.9% 0.033 239.5)
-
Step 400
400
#82A6BF
oklch(70.7% 0.054 238.8)
-
Step 500
500
#6290AE
oklch(63.2% 0.067 237.8)
-
Step 600
600
#48799A
oklch(55.5% 0.074 239.5)
-
Step 700
700 (this color)
#315E7B
oklch(46.3% 0.069 238.9)
-
Step 800
800
#30536B
oklch(42.6% 0.057 239.9)
-
Step 900
900
#2B4557
oklch(37.7% 0.044 239.7)
-
Step 950
950
#192833
oklch(26.9% 0.029 241)
#315E7B 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) | #515E7C | 0.039 |
| Deuteranopia (no green cones) | #47567B | 0.033 |
| Tritanopia (no blue cones) | #006568 | 0.052 |
| Achromatopsia (no color) | #595959 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #315E7B
#315E7B
oklch(46.3% 0.069 238.9)
- #754F30
#754F30
oklch(46.2% 0.068 59.2)
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 #315E7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.019
- Light Navy Blue #2E5A88 ΔE 0.028
- Denim #3B638C ΔE 0.032
- Petrol #005F6A ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.043
- Dusty Grape #545775 ΔE 0.045
- Peacock Blue #016795 ΔE 0.046
- Dusk #4E5481 ΔE 0.047
Use #315E7B 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.