#153D66#153D66

#153D66 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.5% C 0.084 H 251.9°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#153D66
RGB	rgb(21, 61, 102)
HSL	hsl(210, 66%, 24%)
HSV	hsv(210, 79%, 40%)
CMYK	cmyk(79.4%, 40.2%, 0%, 60%)
CIE-LAB	lab(25.12, 1.94, -28.07)
CIE-LCH	lch(25.12, 28.14, 273.95°)
OKLab	oklab(35.46% -0.0262 -0.08)
OKLCH	oklch(35.46% 0.084 251.9)
XYZ	xyz(4.3754, 4.4557, 13.1972)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D66 #663E15

analogous

#156666 #153D66 #151566

triadic

#153D66 #66153D #3D6615

tetradic

#153D66 #661566 #663E15 #156615

square

#153D66 #661566 #663E15 #156615

split-complementary

#153D66 #661515 #666615

monochromatic

#050F19 #0B1F33 #153D66 #1F5B99 #2A7ACC

Accessibility & contrast

On white

11.10

#153D66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#153D66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D66

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D66	#FFFFFF	#000000	##FFFFFF
##153D66	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A4068

Deuteranopia (green-blind)

#1D3865

Tritanopia (blue-blind)

#00474C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #153d66;
/* rgb */ color: rgb(21, 61, 102);
/* oklch */ color: oklch(35.5% 0.084 251.9);

Tailwind

colors: {
  custom: {
    50: '#5f7292',
    500: '#153d66',
    950: '#000000',
  },
}

SCSS

$custom: #153d66;
$custom-light: #5f7292;
$custom-dark: #000000;

JSON

{
  "hex": "#153d66",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 102
  },
  "hsl": {
    "h": 210.37,
    "s": 65.854,
    "l": 24.118
  },
  "oklch": {
    "l": 0.3546,
    "c": 0.08418,
    "h": 251.9
  },
  "luminance": 0.04456
}

Semantic roles & 50–950 ramp

primary

#153D66

secondary

#9D6C3A

accent

#953FE9

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05070D

muted

#797A7E

Preview Lab

Preview with #153D66

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

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