#3B618D
Closest named color: Denim (#3B638C). oklch(48.5% 0.084 253.1), rgb(59, 97, 141).
Aa
White text reads best on this color (6.40:1).
About this color
#3B618D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.084 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.007 away. White text reads best on it, at 6.40:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.28:1 |
| White text | 6.40:1 |
Values
| HEX | #3B618D |
| RGB | rgb(59, 97, 141) |
| HSL | hsl(212, 41%, 39%) |
| OKLCH | oklch(48.5% 0.084 253.1) |
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 #3B618D | 6.40:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #3B618D | 3.28:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #3B618D text on white | 6.40:1 | AA | Lc 81.7 | Fine for body text |
| #3B618D text on black | 3.28:1 | AA large text | Lc -20.2 | 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
#E4EAF2
oklch(93.5% 0.013 255.5)
-
Step 200
200
#CFDAE8
oklch(88.4% 0.023 254.4)
-
Step 300
300
#AFC3DB
oklch(81% 0.04 253.1)
-
Step 400
400
#84A3C9
oklch(70.6% 0.066 253.8)
-
Step 500
500
#658CBB
oklch(63% 0.084 253.6)
-
Step 600
600
#4C76A7
oklch(55.7% 0.09 253.1)
-
Step 700
700 (this color)
#3B618D
oklch(48.5% 0.084 253.1)
-
Step 800
800
#335174
oklch(42.8% 0.069 253.1)
-
Step 900
900
#2C435E
oklch(37.7% 0.055 253.1)
-
Step 950
950
#1A2737
oklch(26.9% 0.035 254.1)
#3B618D 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) | #4F638F | 0.026 |
| Deuteranopia (no green cones) | #445B8C | 0.019 |
| Tritanopia (no blue cones) | #006B71 | 0.072 |
| Achromatopsia (no color) | #5F5F5F | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B618D
#3B618D
oklch(48.5% 0.084 253.1)
- #7B5722
#7B5722
oklch(48.5% 0.084 73.8)
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 #3B618D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.007
- Dusky Blue #475F94 ΔE 0.020
- Denim Blue #3B5B92 ΔE 0.021
- Light Navy Blue #2E5A88 ΔE 0.027
- Peacock Blue #016795 ΔE 0.035
- YInMn Blue #415A77 ΔE 0.037
- Dusk #4E5481 ΔE 0.042
- Twilight #4E518B ΔE 0.049
Use #3B618D 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.