#315273
Closest named color: YInMn Blue (#415A77). oklch(42.9% 0.067 249.7), rgb(49, 82, 115).
Aa
White text reads best on this color (8.12:1).
About this color
#315273 is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.067 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.033 away. White text reads best on it, at 8.12:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.58:1 |
| White text | 8.12:1 |
Values
| HEX | #315273 |
| RGB | rgb(49, 82, 115) |
| HSL | hsl(210, 40%, 32%) |
| OKLCH | oklch(42.9% 0.067 249.7) |
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 #315273 | 8.12:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #315273 | 2.58:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #315273 text on white | 8.12:1 | AAA | Lc 88.0 | Fine for body text |
| #315273 text on black | 2.58:1 | Fails | Lc -14.2 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CFDBE7
oklch(88.6% 0.021 248.1)
-
Step 300
300
#AEC3DA
oklch(80.9% 0.04 250.7)
-
Step 400
400
#83A4C7
oklch(70.7% 0.063 250.2)
-
Step 500
500
#638DB9
oklch(63% 0.081 250.3)
-
Step 600
600
#4977A5
oklch(55.6% 0.088 249.7)
-
Step 700
700
#3A648D
oklch(49.1% 0.081 249.3)
-
Step 800
800 (this color)
#315273
oklch(42.9% 0.067 249.7)
-
Step 900
900
#2B445D
oklch(37.8% 0.053 249.4)
-
Step 950
950
#1A2836
oklch(27.1% 0.032 249.1)
#315273 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) | #445374 | 0.025 |
| Deuteranopia (no green cones) | #3C4D72 | 0.019 |
| Tritanopia (no blue cones) | #055A5D | 0.059 |
| Achromatopsia (no color) | #505050 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #315273
#315273
oklch(42.9% 0.067 249.7)
- #674823
#674823
oklch(42.8% 0.067 69.1)
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 #315273, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.033
- Deep Sea Blue #015482 ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.038
- Light Navy #155084 ΔE 0.038
- Dusk Blue #26538D ΔE 0.043
- Dusk #4E5481 ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.051
- Dusty Grape #545775 ΔE 0.052
Use #315273 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.