#2561B6#2561B6

#2561B6 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.1% C 0.148 H 257.9°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#2561B6
RGB	rgb(37, 97, 182)
HSL	hsl(215, 66%, 43%)
HSV	hsv(215, 80%, 71%)
CMYK	cmyk(79.7%, 46.7%, 0%, 28.6%)
CIE-LAB	lab(41.72, 11.95, -50.46)
CIE-LCH	lch(41.72, 51.86, 283.32°)
OKLab	oklab(50.11% -0.031 -0.1449)
OKLCH	oklch(50.11% 0.148 257.9)
XYZ	xyz(13.4780, 12.3185, 45.9143)
Luminance	0.1232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2561B6 #B67A25

analogous

#25AAB6 #2561B6 #3125B6

triadic

#2561B6 #B62561 #61B625

tetradic

#2561B6 #B625AA #B67A25 #25B631

square

#2561B6 #B625AA #B67A25 #25B631

split-complementary

#2561B6 #B63125 #AAB625

monochromatic

#102B50 #1B4683 #2561B6 #407FD8 #73A1E3

Accessibility & contrast

On white

6.06

#2561B6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#2561B6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2561B6

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2561B6	#FFFFFF	#000000	##FFFFFF
##2561B6	1.00	6.06	3.46	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3369B9

Deuteranopia (green-blind)

#0A5CB4

Tritanopia (blue-blind)

#007582

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #2561b6;
/* rgb */ color: rgb(37, 97, 182);
/* oklch */ color: oklch(50.1% 0.148 257.9);

Tailwind

colors: {
  custom: {
    50: '#768dcc',
    500: '#2561b6',
    950: '#000000',
  },
}

SCSS

$custom: #2561b6;
$custom-light: #768dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#2561b6",
  "rgb": {
    "r": 37,
    "g": 97,
    "b": 182
  },
  "hsl": {
    "h": 215.172,
    "s": 66.21,
    "l": 42.941
  },
  "oklch": {
    "l": 0.50114,
    "c": 0.14818,
    "h": 257.9
  },
  "luminance": 0.1232
}

Semantic roles & 50–950 ramp

primary

#2561B6

secondary

#CAA36D

accent

#A33FE9

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2561B6

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

Preview Lab → · Contrast checker → · Palette generator →