#36588B
Closest named color: Light Navy Blue (#2E5A88). oklch(45.9% 0.093 258.3), rgb(54, 88, 139).
Aa
White text reads best on this color (7.17:1).
About this color
#36588B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.093 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.011 away. White text reads best on it, at 7.17:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.92:1 |
| White text | 7.17:1 |
Values
| HEX | #36588B |
| RGB | rgb(54, 88, 139) |
| HSL | hsl(216, 44%, 38%) |
| OKLCH | oklch(45.9% 0.093 258.3) |
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 #36588B | 7.17:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #36588B | 2.92:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #36588B text on white | 7.17:1 | AAA | Lc 84.7 | Fine for body text |
| #36588B text on black | 2.92:1 | Fails | Lc -17.3 | 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 700.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#CFDAEA
oklch(88.5% 0.025 257.6)
-
Step 300
300
#AFC2DE
oklch(80.9% 0.045 258)
-
Step 400
400
#85A2CE
oklch(70.7% 0.072 258.6)
-
Step 500
500
#678BC1
oklch(63.2% 0.091 258.3)
-
Step 600
600
#4E74AD
oklch(55.6% 0.099 258.3)
-
Step 700
700 (this color)
#36588B
oklch(45.9% 0.093 258.3)
-
Step 800
800
#344F79
oklch(42.6% 0.078 258.9)
-
Step 900
900
#2D4261
oklch(37.6% 0.06 258)
-
Step 950
950
#1B2739
oklch(27.1% 0.038 258.3)
#36588B 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) | #435C8D | 0.021 |
| Deuteranopia (no green cones) | #37548A | 0.011 |
| Tritanopia (no blue cones) | #00636B | 0.078 |
| Achromatopsia (no color) | #575757 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #36588B
#36588B
oklch(45.9% 0.093 258.3)
- #745007
#745007
oklch(45.9% 0.093 77.7)
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 #36588B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.011
- Denim Blue #3B5B92 ΔE 0.015
- Dusk Blue #26538D ΔE 0.024
- Dusky Blue #475F94 ΔE 0.033
- Dusk #4E5481 ΔE 0.033
- Denim #3B638C ΔE 0.034
- Twilight #4E518B ΔE 0.035
- YInMn Blue #415A77 ΔE 0.037
Use #36588B 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.