#3B5D8A
Closest named color: Denim Blue (#3B5B92). oklch(47.3% 0.083 255.8), rgb(59, 93, 138).
Aa
White text reads best on this color (6.73:1).
About this color
#3B5D8A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.083 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.016 away. White text reads best on it, at 6.73:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.11:1 |
| White text | 6.73:1 |
Values
| HEX | #3B5D8A |
| RGB | rgb(59, 93, 138) |
| HSL | hsl(214, 40%, 39%) |
| OKLCH | oklch(47.3% 0.083 255.8) |
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 #3B5D8A | 6.73:1 | AA | Lc -88.1 | Fine for body text |
| Black text on #3B5D8A | 3.11:1 | AA large text | Lc 21.0 | Dividers and decoration only |
| #3B5D8A text on white | 6.73:1 | AA | Lc 83.1 | Fine for body text |
| #3B5D8A text on black | 3.11:1 | AA large text | Lc -18.9 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D0DAE8
oklch(88.5% 0.022 256.7)
-
Step 300
300
#B0C2DB
oklch(80.8% 0.041 256.6)
-
Step 400
400
#86A3C9
oklch(70.7% 0.065 255.3)
-
Step 500
500
#688CBB
oklch(63.2% 0.082 255.4)
-
Step 600
600
#4F75A7
oklch(55.6% 0.089 255.7)
-
Step 700
700 (this color)
#3B5D8A
oklch(47.3% 0.083 255.8)
-
Step 800
800
#355074
oklch(42.6% 0.069 255.9)
-
Step 900
900
#2E435E
oklch(37.8% 0.054 255.1)
-
Step 950
950
#1B2737
oklch(26.9% 0.034 255.8)
#3B5D8A 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) | #4B608C | 0.023 |
| Deuteranopia (no green cones) | #415889 | 0.015 |
| Tritanopia (no blue cones) | #04676D | 0.074 |
| Achromatopsia (no color) | #5C5C5C | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B5D8A
#3B5D8A
oklch(47.3% 0.083 255.8)
- #77551E
#77551E
oklch(47.5% 0.084 75.9)
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 #3B5D8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.016
- Denim #3B638C ΔE 0.018
- Light Navy Blue #2E5A88 ΔE 0.018
- Dusky Blue #475F94 ΔE 0.023
- YInMn Blue #415A77 ΔE 0.030
- Dusk #4E5481 ΔE 0.033
- Dusk Blue #26538D ΔE 0.040
- Twilight #4E518B ΔE 0.040
Use #3B5D8A 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.