#21638F#21638F

#21638F is a mid, moderate cyan. Relative luminance 0.112; OKLCH L 48.0% C 0.096 H 242.2°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#21638F
RGB	rgb(33, 99, 143)
HSL	hsl(204, 63%, 35%)
HSV	hsv(204, 77%, 56%)
CMYK	cmyk(76.9%, 30.8%, 0%, 43.9%)
CIE-LAB	lab(39.96, -4.83, -30.12)
CIE-LCH	lch(39.96, 30.50, 260.90°)
OKLab	oklab(47.98% -0.0449 -0.0853)
OKLCH	oklch(47.98% 0.096 242.2)
XYZ	xyz(10.0450, 11.2290, 27.6193)
Luminance	0.1123 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21638F #8F4D21

analogous

#218F84 #21638F #212C8F

triadic

#21638F #8F2163 #638F21

tetradic

#21638F #84218F #8F4D21 #2C8F21

square

#21638F #84218F #8F4D21 #2C8F21

split-complementary

#21638F #8F212C #8F8421

monochromatic

#0A1E2C #16415D #21638F #2C85C1 #53A2D7

Accessibility & contrast

On white

6.47

#21638F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#21638F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21638F

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21638F	#FFFFFF	#000000	##FFFFFF
##21638F	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F6491

Deuteranopia (green-blind)

#3F5A8E

Tritanopia (blue-blind)

#006E72

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #21638f;
/* rgb */ color: rgb(33, 99, 143);
/* oklch */ color: oklch(48.0% 0.096 242.2);

Tailwind

colors: {
  custom: {
    50: '#6d8fb0',
    500: '#21638f',
    950: '#000000',
  },
}

SCSS

$custom: #21638f;
$custom-light: #6d8fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#21638f",
  "rgb": {
    "r": 33,
    "g": 99,
    "b": 143
  },
  "hsl": {
    "h": 204,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.47983,
    "c": 0.09634,
    "h": 242.2
  },
  "luminance": 0.1123
}

Semantic roles & 50–950 ramp

primary

#21638F

secondary

#BB7B51

accent

#8442E6

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080C10

muted

#7B7D7F

Preview Lab

Preview with #21638F

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

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