#3D57B2#3D57B2

#3D57B2 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.7% C 0.148 H 268.5°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#3D57B2
RGB	rgb(61, 87, 178)
HSL	hsl(227, 49%, 47%)
HSV	hsv(227, 66%, 70%)
CMYK	cmyk(65.7%, 51.1%, 0%, 30.2%)
CIE-LAB	lab(39.62, 20.28, -51.45)
CIE-LCH	lch(39.62, 55.30, 291.51°)
OKLab	oklab(48.69% -0.004 -0.1476)
OKLCH	oklch(48.69% 0.148 268.5)
XYZ	xyz(13.3658, 11.0216, 43.5339)
Luminance	0.1102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D57B2 #B2983D

analogous

#3D92B2 #3D57B2 #5E3DB2

triadic

#3D57B2 #B23D57 #57B23D

tetradic

#3D57B2 #B23D92 #B2983D #3DB25E

square

#3D57B2 #B23D92 #B2983D #3DB25E

split-complementary

#3D57B2 #B25E3D #92B23D

monochromatic

#1E2A57 #2D4184 #3D57B2 #637AC9 #90A0D9

Accessibility & contrast

On white

6.55

#3D57B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3D57B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D57B2

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D57B2	#FFFFFF	#000000	##FFFFFF
##3D57B2	1.00	6.55	3.20	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2263B5

Deuteranopia (green-blind)

#0058B0

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3d57b2;
/* rgb */ color: rgb(61, 87, 178);
/* oklch */ color: oklch(48.7% 0.148 268.5);

Tailwind

colors: {
  custom: {
    50: '#7f86ca',
    500: '#3d57b2',
    950: '#000000',
  },
}

SCSS

$custom: #3d57b2;
$custom-light: #7f86ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3d57b2",
  "rgb": {
    "r": 61,
    "g": 87,
    "b": 178
  },
  "hsl": {
    "h": 226.667,
    "s": 48.954,
    "l": 46.863
  },
  "oklch": {
    "l": 0.48691,
    "c": 0.14761,
    "h": 268.5
  },
  "luminance": 0.11023
}

Semantic roles & 50–950 ramp

primary

#3D57B2

secondary

#C4B687

accent

#BA4FD9

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3D57B2

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →