#315280
Closest named color: Dusk Blue (#26538D). oklch(43.6% 0.086 256.9), rgb(49, 82, 128).
Aa
White text reads best on this color (7.92:1).
About this color
#315280 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.086 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.023 away. White text reads best on it, at 7.92:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.64:1 |
| White text | 7.92:1 |
Values
| HEX | #315280 |
| RGB | rgb(49, 82, 128) |
| HSL | hsl(215, 45%, 35%) |
| OKLCH | oklch(43.6% 0.086 256.9) |
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 #315280 | 7.92:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #315280 | 2.64:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #315280 text on white | 7.92:1 | AAA | Lc 87.3 | Fine for body text |
| #315280 text on black | 2.64:1 | Fails | Lc -14.8 | Not readable |
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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAEC
oklch(88.5% 0.028 258.4)
-
Step 300
300
#ACC2E1
oklch(80.8% 0.05 257)
-
Step 400
400
#80A3D3
oklch(70.8% 0.081 256.4)
-
Step 500
500
#608BC7
oklch(63.1% 0.103 256.9)
-
Step 600
600
#4674B4
oklch(55.6% 0.112 256.9)
-
Step 700
700
#38619B
oklch(49.1% 0.104 257.3)
-
Step 800
800 (this color)
#315280
oklch(43.6% 0.086 256.9)
-
Step 900
900
#2A4265
oklch(37.7% 0.067 257.7)
-
Step 950
950
#19273B
oklch(27% 0.042 257.3)
#315280 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) | #3F5582 | 0.020 |
| Deuteranopia (no green cones) | #344E7F | 0.012 |
| Tritanopia (no blue cones) | #005C63 | 0.072 |
| Achromatopsia (no color) | #515151 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #315280
#315280
oklch(43.6% 0.086 256.9)
- #6C4A0B
#6C4A0B
oklch(43.6% 0.086 76.5)
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 #315280, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.023
- Light Navy Blue #2E5A88 ΔE 0.024
- Light Navy #155084 ΔE 0.026
- Deep Sea Blue #015482 ΔE 0.030
- YInMn Blue #415A77 ΔE 0.038
- Dusk #4E5481 ΔE 0.039
- Denim Blue #3B5B92 ΔE 0.039
- Twilight #4E518B ΔE 0.043
Use #315280 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.