#21749B#21749B

#21749B is a mid, moderate cyan. Relative luminance 0.152; OKLCH L 52.9% C 0.098 H 233.9°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#21749B
RGB	rgb(33, 116, 155)
HSL	hsl(199, 65%, 37%)
HSV	hsv(199, 79%, 61%)
CMYK	cmyk(78.7%, 25.2%, 0%, 39.2%)
CIE-LAB	lab(45.88, -10.52, -28.01)
CIE-LCH	lch(45.88, 29.92, 249.41°)
OKLab	oklab(52.87% -0.0576 -0.079)
OKLCH	oklch(52.87% 0.098 233.9)
XYZ	xyz(12.7866, 15.1791, 33.2599)
Luminance	0.1518 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21749B #9B4821

analogous

#219B85 #21749B #21379B

triadic

#21749B #9B2174 #749B21

tetradic

#21749B #85219B #9B4821 #379B21

square

#21749B #85219B #9B4821 #379B21

split-complementary

#21749B #9B2137 #9B8521

monochromatic

#0C2836 #164E69 #21749B #2C9ACD #5AB3DC

Accessibility & contrast

On white

5.20

#21749B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#21749B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21749B

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21749B	#FFFFFF	#000000	##FFFFFF
##21749B	1.00	5.20	4.04	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61739D

Deuteranopia (green-blind)

#50689A

Tritanopia (blue-blind)

#007E81

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #21749b;
/* rgb */ color: rgb(33, 116, 155);
/* oklch */ color: oklch(52.9% 0.098 233.9);

Tailwind

colors: {
  custom: {
    50: '#709cb8',
    500: '#21749b',
    950: '#000000',
  },
}

SCSS

$custom: #21749b;
$custom-light: #709cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#21749b",
  "rgb": {
    "r": 33,
    "g": 116,
    "b": 155
  },
  "hsl": {
    "h": 199.18,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.5287,
    "c": 0.09774,
    "h": 233.9
  },
  "luminance": 0.15181
}

Semantic roles & 50–950 ramp

primary

#21749B

secondary

#C07958

accent

#7640E8

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #21749B

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

Preview Lab → · Contrast checker → · Palette generator →