#3D77CB#3D77CB

#3D77CB is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.2% C 0.143 H 257.9°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3D77CB
RGB	rgb(61, 119, 203)
HSL	hsl(215, 58%, 52%)
HSV	hsv(215, 70%, 80%)
CMYK	cmyk(70%, 41.4%, 0%, 20.4%)
CIE-LAB	lab(50.09, 8.99, -49.14)
CIE-LCH	lch(50.09, 49.95, 280.37°)
OKLab	oklab(57.23% -0.0302 -0.1403)
OKLCH	oklch(57.23% 0.143 257.9)
XYZ	xyz(19.2969, 18.4955, 59.0413)
Luminance	0.1850 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D77CB #CB913D

analogous

#3DBECB #3D77CB #4A3DCB

triadic

#3D77CB #CB3D77 #77CB3D

tetradic

#3D77CB #CB3DBE #CB913D #3DCB4A

square

#3D77CB #CB3DBE #CB913D #3DCB4A

split-complementary

#3D77CB #CB4A3D #BECB3D

monochromatic

#1E3F70 #2B5BA0 #3D77CB #6D99D8 #9EBBE5

Accessibility & contrast

On white

4.47

#3D77CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#3D77CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D77CB

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D77CB	#FFFFFF	#000000	##000000
##3D77CB	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F7ECE

Deuteranopia (green-blind)

#3871C9

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3d77cb;
/* rgb */ color: rgb(61, 119, 203);
/* oklch */ color: oklch(57.2% 0.143 257.9);

Tailwind

colors: {
  custom: {
    50: '#839ddb',
    500: '#3d77cb',
    950: '#000000',
  },
}

SCSS

$custom: #3d77cb;
$custom-light: #839ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#3d77cb",
  "rgb": {
    "r": 61,
    "g": 119,
    "b": 203
  },
  "hsl": {
    "h": 215.493,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.57227,
    "c": 0.14349,
    "h": 257.9
  },
  "luminance": 0.18498
}

Semantic roles & 50–950 ramp

primary

#3D77CB

secondary

#D1B893

accent

#A247E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3D77CB

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

Preview Lab → · Contrast checker → · Palette generator →