#3B61AB
Closest named color: Mid Blue (#276AB3). oklch(50.2% 0.126 262.3), rgb(59, 97, 171).
Aa
White text reads best on this color (6.02:1).
About this color
#3B61AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.126 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.028 away. White text reads best on it, at 6.02:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.48:1 |
| White text | 6.02:1 |
Values
| HEX | #3B61AB |
| RGB | rgb(59, 97, 171) |
| HSL | hsl(220, 49%, 45%) |
| OKLCH | oklch(50.2% 0.126 262.3) |
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 #3B61AB | 6.02:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #3B61AB | 3.48:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #3B61AB text on white | 6.02:1 | AA | Lc 79.9 | Fine for body text |
| #3B61AB text on black | 3.48:1 | AA large text | Lc -22.0 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CDDAF0
oklch(88.5% 0.033 261)
-
Step 300
300
#ACC1E9
oklch(80.9% 0.061 263.2)
-
Step 400
400
#80A1DE
oklch(70.8% 0.097 262.3)
-
Step 500
500
#6088D4
oklch(63.1% 0.123 262.3)
-
Step 600
600
#4670C2
oklch(55.5% 0.136 262.4)
-
Step 700
700 (this color)
#3B61AB
oklch(50.2% 0.126 262.3)
-
Step 800
800
#2F4D88
oklch(42.8% 0.104 262.5)
-
Step 900
900
#29406C
oklch(37.6% 0.081 262.3)
-
Step 950
950
#18263F
oklch(27% 0.051 261.4)
#3B61AB 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) | #3F68AE | 0.021 |
| Deuteranopia (no green cones) | #2D5EA9 | 0.017 |
| Tritanopia (no blue cones) | #00727D | 0.105 |
| Achromatopsia (no color) | #636363 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B61AB
#3B61AB
oklch(50.2% 0.126 262.3)
- #815D00
#815D00
oklch(50.3% 0.104 82.2)
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 #3B61AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.028
- French Blue #436BAD ΔE 0.031
- Dusky Blue #475F94 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.041
- Denim #3B638C ΔE 0.052
- Flat Blue #3C73A8 ΔE 0.053
- Muted Blue #3B719F ΔE 0.054
- Peacock Blue #016795 ΔE 0.055
Use #3B61AB 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.