#21438B#21438B

#21438B is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.1% C 0.127 H 263.0°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#21438B
RGB	rgb(33, 67, 139)
HSL	hsl(221, 62%, 34%)
HSV	hsv(221, 76%, 55%)
CMYK	cmyk(76.3%, 51.8%, 0%, 45.5%)
CIE-LAB	lab(29.91, 14.56, -43.69)
CIE-LCH	lch(29.91, 46.05, 288.44°)
OKLab	oklab(40.08% -0.0155 -0.1256)
OKLCH	oklch(40.08% 0.127 263)
XYZ	xyz(7.2929, 6.2009, 25.2336)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21438B #8B6921

analogous

#21788B #21438B #34218B

triadic

#21438B #8B2143 #438B21

tetradic

#21438B #8B2178 #8B6921 #218B34

square

#21438B #8B2178 #8B6921 #218B34

split-complementary

#21438B #8B3421 #788B21

monochromatic

#0A1328 #152B5A #21438B #2D5BBC #517BD6

Accessibility & contrast

On white

9.37

#21438B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#21438B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21438B

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21438B	#FFFFFF	#000000	##FFFFFF
##21438B	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174C8E

Deuteranopia (green-blind)

#00428A

Tritanopia (blue-blind)

#005460

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #21438b;
/* rgb */ color: rgb(33, 67, 139);
/* oklch */ color: oklch(40.1% 0.127 263.0);

Tailwind

colors: {
  custom: {
    50: '#6c76ad',
    500: '#21438b',
    950: '#000000',
  },
}

SCSS

$custom: #21438b;
$custom-light: #6c76ad;
$custom-dark: #000000;

JSON

{
  "hex": "#21438b",
  "rgb": {
    "r": 33,
    "g": 67,
    "b": 139
  },
  "hsl": {
    "h": 220.755,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.40081,
    "c": 0.12656,
    "h": 263
  },
  "luminance": 0.06202
}

Semantic roles & 50–950 ramp

primary

#21438B

secondary

#B9974F

accent

#B143E5

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #21438B

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

Preview Lab → · Contrast checker → · Palette generator →