#37568A
Closest named color: Light Navy Blue (#2E5A88). oklch(45.5% 0.093 260.2), rgb(55, 86, 138).
Aa
White text reads best on this color (7.34:1).
About this color
#37568A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.093 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.015 away. White text reads best on it, at 7.34:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.86:1 |
| White text | 7.34:1 |
Values
| HEX | #37568A |
| RGB | rgb(55, 86, 138) |
| HSL | hsl(218, 43%, 38%) |
| OKLCH | oklch(45.5% 0.093 260.2) |
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 #37568A | 7.34:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #37568A | 2.86:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #37568A text on white | 7.34:1 | AAA | Lc 85.3 | Fine for body text |
| #37568A 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
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
#ADC2E4
oklch(81% 0.053 260)
-
Step 400
400
#81A2D7
oklch(70.8% 0.086 259.7)
-
Step 500
500
#6189CD
oklch(63% 0.112 260.6)
-
Step 600
600
#4872B9
oklch(55.5% 0.121 260.3)
-
Step 700
700
#395FA0
oklch(49% 0.113 260.5)
-
Step 800
800 (this color)
#37568A
oklch(45.5% 0.093 260.2)
-
Step 900
900
#2A4168
oklch(37.6% 0.073 260.4)
-
Step 950
950
#19263D
oklch(26.9% 0.047 261.3)
#37568A 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) | #405A8C | 0.017 |
| Deuteranopia (no green cones) | #355289 | 0.012 |
| Tritanopia (no blue cones) | #006269 | 0.082 |
| Achromatopsia (no color) | #565656 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37568A
#37568A
oklch(45.5% 0.093 260.2)
- #715002
#715002
oklch(45.5% 0.093 80.8)
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 #37568A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.015
- Denim Blue #3B5B92 ΔE 0.019
- Dusk Blue #26538D ΔE 0.021
- Dusk #4E5481 ΔE 0.032
- Twilight #4E518B ΔE 0.032
- Dusky Blue #475F94 ΔE 0.037
- YInMn Blue #415A77 ΔE 0.038
- Light Navy #155084 ΔE 0.039
Use #37568A 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.