#315594
Closest named color: Dusk Blue (#26538D). oklch(45.5% 0.111 260.8), rgb(49, 85, 148).
Aa
White text reads best on this color (7.34:1).
About this color
#315594 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.111 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.017 away. White text reads best on it, at 7.34:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.85:1 |
| White text | 7.34:1 |
Values
| HEX | #315594 |
| RGB | rgb(49, 85, 148) |
| HSL | hsl(218, 50%, 39%) |
| OKLCH | oklch(45.5% 0.111 260.8) |
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 #315594 | 7.34:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #315594 | 2.85:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #315594 text on white | 7.34:1 | AAA | Lc 85.3 | Fine for body text |
| #315594 text on black | 2.85:1 | Fails | Lc -16.7 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CCDAF2
oklch(88.5% 0.036 261.3)
-
Step 300
300
#A9C2EB
oklch(80.9% 0.064 260.3)
-
Step 400
400
#7BA1E2
oklch(70.7% 0.105 260.8)
-
Step 500
500
#5988D9
oklch(63% 0.133 260.7)
-
Step 600
600
#3F70C7
oklch(55.5% 0.145 260.9)
-
Step 700
700
#315EAC
oklch(49.2% 0.134 260.6)
-
Step 800
800 (this color)
#315594
oklch(45.5% 0.111 260.8)
-
Step 900
900
#26406F
oklch(37.6% 0.087 261.3)
-
Step 950
950
#162641
oklch(27% 0.055 260.3)
#315594 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) | #385B96 | 0.020 |
| Deuteranopia (no green cones) | #295293 | 0.013 |
| Tritanopia (no blue cones) | #00636D | 0.091 |
| Achromatopsia (no color) | #565656 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #315594
#315594
oklch(45.5% 0.111 260.8)
- #715000
#715000
oklch(45.5% 0.094 81.1)
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 #315594, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.017
- Denim Blue #3B5B92 ΔE 0.023
- Light Navy Blue #2E5A88 ΔE 0.027
- Twilight #4E518B ΔE 0.038
- Light Navy #155084 ΔE 0.039
- Dusky Blue #475F94 ΔE 0.042
- Cobalt #1E488F ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.045
Use #315594 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.