#21498B#21498B

#21498B is a dark, moderate blue. Relative luminance 0.070; OKLCH L 41.4% C 0.119 H 259.9°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#21498B
RGB	rgb(33, 73, 139)
HSL	hsl(217, 62%, 34%)
HSV	hsv(217, 76%, 55%)
CMYK	cmyk(76.3%, 47.5%, 0%, 45.5%)
CIE-LAB	lab(31.70, 10.46, -40.82)
CIE-LCH	lch(31.70, 42.14, 284.38°)
OKLab	oklab(41.45% -0.0208 -0.117)
OKLCH	oklch(41.45% 0.119 259.9)
XYZ	xyz(7.6683, 6.9516, 25.3588)
Luminance	0.0695 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21498B #8B6321

analogous

#217E8B #21498B #2E218B

triadic

#21498B #8B2149 #498B21

tetradic

#21498B #8B217E #8B6321 #218B2E

square

#21498B #8B217E #8B6321 #218B2E

split-complementary

#21498B #8B2E21 #7E8B21

monochromatic

#0A1528 #152F5A #21498B #2D63BC #5183D6

Accessibility & contrast

On white

8.78

#21498B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#21498B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21498B

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21498B	#FFFFFF	#000000	##FFFFFF
##21498B	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26508D

Deuteranopia (green-blind)

#0D468A

Tritanopia (blue-blind)

#005963

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #21498b;
/* rgb */ color: rgb(33, 73, 139);
/* oklch */ color: oklch(41.4% 0.119 259.9);

Tailwind

colors: {
  custom: {
    50: '#6c7bad',
    500: '#21498b',
    950: '#000000',
  },
}

SCSS

$custom: #21498b;
$custom-light: #6c7bad;
$custom-dark: #000000;

JSON

{
  "hex": "#21498b",
  "rgb": {
    "r": 33,
    "g": 73,
    "b": 139
  },
  "hsl": {
    "h": 217.358,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.41447,
    "c": 0.11888,
    "h": 259.9
  },
  "luminance": 0.06953
}

Semantic roles & 50–950 ramp

primary

#21498B

secondary

#B9914F

accent

#A843E5

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #21498B

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

Preview Lab → · Contrast checker → · Palette generator →