#36578D
Closest named color: Denim Blue (#3B5B92). oklch(45.8% 0.097 259.8), rgb(54, 87, 141).
Aa
White text reads best on this color (7.22:1).
About this color
#36578D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.097 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.015 away. White text reads best on it, at 7.22:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 2.90:1 |
| White text | 7.22:1 |
Values
| HEX | #36578D |
| RGB | rgb(54, 87, 141) |
| HSL | hsl(217, 45%, 38%) |
| OKLCH | oklch(45.8% 0.097 259.8) |
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 #36578D | 7.22:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #36578D | 2.90:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #36578D text on white | 7.22:1 | AAA | Lc 84.9 | Fine for body text |
| #36578D text on black | 2.90:1 | Fails | Lc -17.1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CDDAEE
oklch(88.5% 0.031 258.9)
-
Step 300
300
#ACC2E6
oklch(81% 0.056 260.2)
-
Step 400
400
#7FA2D9
oklch(70.8% 0.09 259.2)
-
Step 500
500
#5F89CF
oklch(63% 0.116 260.2)
-
Step 600
600
#4572BC
oklch(55.6% 0.126 259.8)
-
Step 700
700
#375FA2
oklch(49% 0.117 260.1)
-
Step 800
800 (this color)
#36578D
oklch(45.8% 0.097 259.8)
-
Step 900
900
#294169
oklch(37.6% 0.075 260.1)
-
Step 950
950
#18263E
oklch(26.9% 0.049 260.7)
#36578D 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) | #405B8F | 0.018 |
| Deuteranopia (no green cones) | #34538C | 0.012 |
| Tritanopia (no blue cones) | #00636B | 0.083 |
| Achromatopsia (no color) | #575757 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #36578D
#36578D
oklch(45.8% 0.097 259.8)
- #735000
#735000
oklch(45.7% 0.095 79.5)
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 #36578D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.015
- Light Navy Blue #2E5A88 ΔE 0.015
- Dusk Blue #26538D ΔE 0.021
- Twilight #4E518B ΔE 0.033
- Dusky Blue #475F94 ΔE 0.034
- Dusk #4E5481 ΔE 0.035
- Denim #3B638C ΔE 0.038
- Light Navy #155084 ΔE 0.041
Use #36578D 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.