#21497B#21497B

#21497B is a dark, moderate cyan. Relative luminance 0.065; OKLCH L 40.3% C 0.096 H 255.3°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#21497B
RGB	rgb(33, 73, 123)
HSL	hsl(213, 58%, 31%)
HSV	hsv(213, 73%, 48%)
CMYK	cmyk(73.2%, 40.7%, 0%, 51.8%)
CIE-LAB	lab(30.68, 4.12, -32.53)
CIE-LCH	lch(30.68, 32.79, 277.22°)
OKLab	oklab(40.33% -0.0243 -0.0927)
OKLCH	oklch(40.33% 0.096 255.3)
XYZ	xyz(6.5836, 6.5178, 19.6461)
Luminance	0.0652 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21497B #7B5321

analogous

#21767B #21497B #26217B

triadic

#21497B #7B2149 #497B21

tetradic

#21497B #7B2176 #7B5321 #217B26

square

#21497B #7B2176 #7B5321 #217B26

split-complementary

#21497B #7B2621 #767B21

monochromatic

#07101A #142C4B #21497B #2E66AB #4884CE

Accessibility & contrast

On white

9.12

#21497B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#21497B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21497B

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21497B	#FFFFFF	#000000	##FFFFFF
##21497B	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324D7D

Deuteranopia (green-blind)

#24447A

Tritanopia (blue-blind)

#00555C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #21497b;
/* rgb */ color: rgb(33, 73, 123);
/* oklch */ color: oklch(40.3% 0.096 255.3);

Tailwind

colors: {
  custom: {
    50: '#687ba1',
    500: '#21497b',
    950: '#000000',
  },
}

SCSS

$custom: #21497b;
$custom-light: #687ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#21497b",
  "rgb": {
    "r": 33,
    "g": 73,
    "b": 123
  },
  "hsl": {
    "h": 213.333,
    "s": 57.692,
    "l": 30.588
  },
  "oklch": {
    "l": 0.40334,
    "c": 0.09582,
    "h": 255.3
  },
  "luminance": 0.06518
}

Semantic roles & 50–950 ramp

primary

#21497B

secondary

#AE814A

accent

#9C47E1

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#07090F

muted

#7A7B7E

Preview Lab

Preview with #21497B

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

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