#21487F#21487F

#21487F is a dark, moderate blue. Relative luminance 0.065; OKLCH L 40.4% C 0.103 H 257.5°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#21487F
RGB	rgb(33, 72, 127)
HSL	hsl(215, 59%, 31%)
HSV	hsv(215, 74%, 50%)
CMYK	cmyk(74%, 43.3%, 0%, 50.2%)
CIE-LAB	lab(30.62, 6.37, -35.13)
CIE-LCH	lch(30.62, 35.70, 280.28°)
OKLab	oklab(40.36% -0.0223 -0.1003)
OKLCH	oklch(40.36% 0.103 257.5)
XYZ	xyz(6.7739, 6.4896, 20.9702)
Luminance	0.0649 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21487F #7F5821

analogous

#21777F #21487F #29217F

triadic

#21487F #7F2148 #487F21

tetradic

#21487F #7F2177 #7F5821 #217F29

square

#21487F #7F2177 #7F5821 #217F29

split-complementary

#21487F #7F2921 #777F21

monochromatic

#08111E #142C4E #21487F #2E64B0 #4A82D0

Accessibility & contrast

On white

9.14

#21487F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#21487F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21487F

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21487F	#FFFFFF	#000000	##FFFFFF
##21487F	1.00	9.14	2.30	9.14
#FFFFFF	9.14	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4D81

Deuteranopia (green-blind)

#1E447E

Tritanopia (blue-blind)

#00555D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #21487f;
/* rgb */ color: rgb(33, 72, 127);
/* oklch */ color: oklch(40.4% 0.103 257.5);

Tailwind

colors: {
  custom: {
    50: '#697aa4',
    500: '#21487f',
    950: '#000000',
  },
}

SCSS

$custom: #21487f;
$custom-light: #697aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#21487f",
  "rgb": {
    "r": 33,
    "g": 72,
    "b": 127
  },
  "hsl": {
    "h": 215.106,
    "s": 58.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.40362,
    "c": 0.10279,
    "h": 257.5
  },
  "luminance": 0.0649
}

Semantic roles & 50–950 ramp

primary

#21487F

secondary

#B2874A

accent

#A146E2

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #21487F

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

Preview Lab → · Contrast checker → · Palette generator →