#315E7C
Closest named color: YInMn Blue (#415A77). oklch(46.3% 0.07 239.8), rgb(49, 94, 124).
Aa
White text reads best on this color (6.94:1).
About this color
#315E7C is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.070 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.020 away. White text reads best on it, at 6.94:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.02:1 |
| White text | 6.94:1 |
Values
| HEX | #315E7C |
| RGB | rgb(49, 94, 124) |
| HSL | hsl(204, 43%, 34%) |
| OKLCH | oklch(46.3% 0.07 239.8) |
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 #315E7C | 6.94:1 | AA | Lc -88.9 | Fine for body text |
| Black text on #315E7C | 3.02:1 | AA large text | Lc 20.1 | Dividers and decoration only |
| #315E7C text on white | 6.94:1 | AA | Lc 83.9 | Fine for body text |
| #315E7C text on black | 3.02:1 | AA large text | Lc -18.1 | 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
#AEC4D5
oklch(80.9% 0.034 241.2)
-
Step 400
400
#82A6BF
oklch(70.7% 0.054 238.8)
-
Step 500
500
#628FAF
oklch(63% 0.069 240.2)
-
Step 600
600
#48799B
oklch(55.6% 0.075 240.3)
-
Step 700
700 (this color)
#315E7C
oklch(46.3% 0.07 239.8)
-
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)
#315E7C 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) | #505E7D | 0.037 |
| Deuteranopia (no green cones) | #46567B | 0.032 |
| Tritanopia (no blue cones) | #006668 | 0.055 |
| Achromatopsia (no color) | #5A5A5A | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #315E7C
#315E7C
oklch(46.3% 0.07 239.8)
- #764F2F
#764F2F
oklch(46.3% 0.07 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 #315E7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.020
- Light Navy Blue #2E5A88 ΔE 0.026
- Denim #3B638C ΔE 0.031
- Denim Blue #3B5B92 ΔE 0.042
- Petrol #005F6A ΔE 0.044
- Peacock Blue #016795 ΔE 0.045
- Dusty Grape #545775 ΔE 0.045
- Dusk #4E5481 ΔE 0.046
Use #315E7C 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.