#315E8D
Closest named color: Light Navy Blue (#2E5A88). oklch(47.2% 0.091 251.2), rgb(49, 94, 141).
Aa
White text reads best on this color (6.73:1).
About this color
#315E8D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.091 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.014 away. White text reads best on it, at 6.73:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 3.11:1 |
| White text | 6.73:1 |
Values
| HEX | #315E8D |
| RGB | rgb(49, 94, 141) |
| HSL | hsl(211, 48%, 37%) |
| OKLCH | oklch(47.2% 0.091 251.2) |
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 #315E8D | 6.73:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #315E8D | 3.11:1 | AA large text | Lc 21.0 | Dividers and decoration only |
| #315E8D text on white | 6.73:1 | AA | Lc 83.0 | Fine for body text |
| #315E8D text on black | 3.11:1 | AA large text | Lc -18.9 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDBE9
oklch(88.6% 0.024 250.1)
-
Step 300
300
#ACC3DD
oklch(80.8% 0.045 251.6)
-
Step 400
400
#80A4CC
oklch(70.7% 0.071 251.5)
-
Step 500
500
#5F8DBF
oklch(63.1% 0.091 251.4)
-
Step 600
600
#4576AB
oklch(55.5% 0.099 251.7)
-
Step 700
700 (this color)
#315E8D
oklch(47.2% 0.091 251.2)
-
Step 800
800
#2D5177
oklch(42.6% 0.076 251.2)
-
Step 900
900
#294360
oklch(37.6% 0.059 252.1)
-
Step 950
950
#182838
oklch(27.1% 0.037 249.3)
#315E8D 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) | #4A608F | 0.030 |
| Deuteranopia (no green cones) | #3D588C | 0.020 |
| Tritanopia (no blue cones) | #00696F | 0.073 |
| Achromatopsia (no color) | #5B5B5B | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #315E8D
#315E8D
oklch(47.2% 0.091 251.2)
- #7B5215
#7B5215
oklch(47.3% 0.091 71.9)
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 #315E8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.014
- Denim Blue #3B5B92 ΔE 0.017
- Denim #3B638C ΔE 0.020
- Dusky Blue #475F94 ΔE 0.028
- Peacock Blue #016795 ΔE 0.032
- Dusk Blue #26538D ΔE 0.036
- YInMn Blue #415A77 ΔE 0.037
- Dusk #4E5481 ΔE 0.043
Use #315E8D 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.