#3D77CF#3D77CF

#3D77CF is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.5% C 0.149 H 258.6°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3D77CF
RGB	rgb(61, 119, 207)
HSL	hsl(216, 60%, 53%)
HSV	hsv(216, 71%, 81%)
CMYK	cmyk(70.5%, 42.5%, 0%, 18.8%)
CIE-LAB	lab(50.32, 10.43, -51.05)
CIE-LCH	lch(50.32, 52.11, 281.55°)
OKLab	oklab(57.48% -0.0294 -0.1459)
OKLCH	oklch(57.48% 0.149 258.6)
XYZ	xyz(19.7797, 18.6886, 61.5842)
Luminance	0.1869 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D77CF #CF953D

analogous

#3DC0CF #3D77CF #4C3DCF

triadic

#3D77CF #CF3D77 #77CF3D

tetradic

#3D77CF #CF3DC0 #CF953D #3DCF4C

square

#3D77CF #CF3DC0 #CF953D #3DCF4C

split-complementary

#3D77CF #CF4C3D #C0CF3D

monochromatic

#1D4075 #295BA6 #3D77CF #6E99DB #9FBCE7

Accessibility & contrast

On white

4.43

#3D77CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#3D77CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D77CF

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D77CF	#FFFFFF	#000000	##000000
##3D77CF	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D7FD2

Deuteranopia (green-blind)

#3372CD

Tritanopia (blue-blind)

#008B99

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3d77cf;
/* rgb */ color: rgb(61, 119, 207);
/* oklch */ color: oklch(57.5% 0.149 258.6);

Tailwind

colors: {
  custom: {
    50: '#839dde',
    500: '#3d77cf',
    950: '#000000',
  },
}

SCSS

$custom: #3d77cf;
$custom-light: #839dde;
$custom-dark: #000000;

JSON

{
  "hex": "#3d77cf",
  "rgb": {
    "r": 61,
    "g": 119,
    "b": 207
  },
  "hsl": {
    "h": 216.164,
    "s": 60.331,
    "l": 52.549
  },
  "oklch": {
    "l": 0.57479,
    "c": 0.14883,
    "h": 258.6
  },
  "luminance": 0.18691
}

Semantic roles & 50–950 ramp

primary

#3D77CF

secondary

#D4BA94

accent

#A444E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3D77CF

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

Preview Lab → · Contrast checker → · Palette generator →