#21749D#21749D

#21749D is a mid, moderate cyan. Relative luminance 0.152; OKLCH L 53.0% C 0.100 H 235.2°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#21749D
RGB	rgb(33, 116, 157)
HSL	hsl(200, 65%, 37%)
HSV	hsv(200, 79%, 62%)
CMYK	cmyk(79%, 26.1%, 0%, 38.4%)
CIE-LAB	lab(45.97, -9.79, -29.04)
CIE-LCH	lch(45.97, 30.65, 251.37°)
OKLab	oklab(52.97% -0.0569 -0.0819)
OKLCH	oklch(52.97% 0.1 235.2)
XYZ	xyz(12.9560, 15.2469, 34.1519)
Luminance	0.1525 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21749D #9D4A21

analogous

#219D88 #21749D #21369D

triadic

#21749D #9D2174 #749D21

tetradic

#21749D #88219D #9D4A21 #369D21

square

#21749D #88219D #9D4A21 #369D21

split-complementary

#21749D #9D2136 #9D8821

monochromatic

#0C2938 #164F6A #21749D #2C99D0 #5CB2DD

Accessibility & contrast

On white

5.19

#21749D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#21749D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21749D

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21749D	#FFFFFF	#000000	##FFFFFF
##21749D	1.00	5.19	4.05	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60739F

Deuteranopia (green-blind)

#4F689C

Tritanopia (blue-blind)

#007F82

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #21749d;
/* rgb */ color: rgb(33, 116, 157);
/* oklch */ color: oklch(53.0% 0.100 235.2);

Tailwind

colors: {
  custom: {
    50: '#709cba',
    500: '#21749d',
    950: '#000000',
  },
}

SCSS

$custom: #21749d;
$custom-light: #709cba;
$custom-dark: #000000;

JSON

{
  "hex": "#21749d",
  "rgb": {
    "r": 33,
    "g": 116,
    "b": 157
  },
  "hsl": {
    "h": 199.839,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.52973,
    "c": 0.09977,
    "h": 235.2
  },
  "luminance": 0.15248
}

Semantic roles & 50–950 ramp

primary

#21749D

secondary

#C17B59

accent

#7740E8

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #21749D

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

Preview Lab → · Contrast checker → · Palette generator →