#37568B
Closest named color: Light Navy Blue (#2E5A88). oklch(45.5% 0.095 260.5), rgb(55, 86, 139).
Aa
White text reads best on this color (7.32:1).
About this color
#37568B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.095 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.016 away. White text reads best on it, at 7.32:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.86:1 |
| White text | 7.32:1 |
Values
| HEX | #37568B |
| RGB | rgb(55, 86, 139) |
| HSL | hsl(218, 43%, 38%) |
| OKLCH | oklch(45.5% 0.095 260.5) |
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 #37568B | 7.32:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #37568B | 2.86:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #37568B text on white | 7.32:1 | AAA | Lc 85.3 | Fine for body text |
| #37568B text on black | 2.86:1 | 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
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEE
oklch(88.5% 0.03 260.7)
-
Step 300
300
#ACC2E5
oklch(80.9% 0.055 259.6)
-
Step 400
400
#81A1D8
oklch(70.6% 0.089 261)
-
Step 500
500
#6189CE
oklch(63.1% 0.114 260.8)
-
Step 600
600
#4872BB
oklch(55.6% 0.123 260.8)
-
Step 700
700
#395FA1
oklch(49.1% 0.115 260.7)
-
Step 800
800 (this color)
#37568B
oklch(45.5% 0.095 260.5)
-
Step 900
900
#2A4168
oklch(37.6% 0.073 260.4)
-
Step 950
950
#19263D
oklch(26.9% 0.047 261.3)
#37568B 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) | #405A8D | 0.017 |
| Deuteranopia (no green cones) | #35538A | 0.009 |
| Tritanopia (no blue cones) | #00626A | 0.082 |
| Achromatopsia (no color) | #565656 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37568B
#37568B
oklch(45.5% 0.095 260.5)
- #725000
#725000
oklch(45.6% 0.094 80.3)
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 #37568B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.016
- Denim Blue #3B5B92 ΔE 0.018
- Dusk Blue #26538D ΔE 0.021
- Twilight #4E518B ΔE 0.032
- Dusk #4E5481 ΔE 0.033
- Dusky Blue #475F94 ΔE 0.036
- Light Navy #155084 ΔE 0.039
- Denim #3B638C ΔE 0.040
Use #37568B 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.