#37469D
Closest named color: Blueberry (#464196). oklch(43.3% 0.142 271.8), rgb(55, 70, 157).
Aa
White text reads best on this color (8.31:1).
About this color
#37469D is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.142 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.025 away. White text reads best on it, at 8.31:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.52:1 |
| White text | 8.31:1 |
Values
| HEX | #37469D |
| RGB | rgb(55, 70, 157) |
| HSL | hsl(231, 48%, 42%) |
| OKLCH | oklch(43.3% 0.142 271.8) |
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 #37469D | 8.31:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #37469D | 2.52:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #37469D text on white | 8.31:1 | AAA | Lc 88.4 | Fine for body text |
| #37469D text on black | 2.52:1 | Fails | Lc -13.8 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CED8F8
oklch(88.5% 0.045 271.7)
-
Step 300
300
#ADBEF7
oklch(80.9% 0.083 271.6)
-
Step 400
400
#849AF3
oklch(70.7% 0.133 272.1)
-
Step 500
500
#677EEE
oklch(63% 0.169 272)
-
Step 600
600
#5065DD
oklch(55.7% 0.184 271.6)
-
Step 700
700
#4153C0
oklch(49.2% 0.171 271.5)
-
Step 800
800 (this color)
#37469D
oklch(43.3% 0.142 271.8)
-
Step 900
900
#2E3B7B
oklch(37.8% 0.109 271.6)
-
Step 950
950
#1B2348
oklch(27% 0.069 271.9)
#37469D 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) | #0453A0 | 0.045 |
| Deuteranopia (no green cones) | #004A9B | 0.040 |
| Tritanopia (no blue cones) | #005B6A | 0.120 |
| Achromatopsia (no color) | #4E4E4E | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37469D
#37469D
oklch(43.3% 0.142 271.8)
- #624E00
#624E00
oklch(43.2% 0.088 91.8)
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 #37469D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.025
- Cobalt #1E488F ΔE 0.036
- Dark Slate Blue #483D8B ΔE 0.041
- Dusk Blue #26538D ΔE 0.049
- Sapphire #2138AB ΔE 0.051
- Twilight #4E518B ΔE 0.057
- Light Navy #155084 ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.064
Use #37469D 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.