#153D5E#153D5E

#153D5E is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.9% C 0.073 H 246.9°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#153D5E
RGB	rgb(21, 61, 94)
HSL	hsl(207, 63%, 23%)
HSV	hsv(207, 78%, 37%)
CMYK	cmyk(77.7%, 35.1%, 0%, 63.1%)
CIE-LAB	lab(24.65, -1.35, -23.64)
CIE-LCH	lch(24.65, 23.68, 266.73°)
OKLab	oklab(34.94% -0.0286 -0.067)
OKLCH	oklch(34.94% 0.073 246.9)
XYZ	xyz(3.9976, 4.3046, 11.2077)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D5E #5E3615

analogous

#155E5A #153D5E #15195E

triadic

#153D5E #5E153D #3D5E15

tetradic

#153D5E #5A155E #5E3615 #195E15

square

#153D5E #5A155E #5E3615 #195E15

split-complementary

#153D5E #5E1519 #5E5A15

monochromatic

#061019 #0A1D2C #153D5E #205D90 #2B7EC2

Accessibility & contrast

On white

11.28

#153D5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#153D5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D5E

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D5E	#FFFFFF	#000000	##FFFFFF
##153D5E	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3E5F

Deuteranopia (green-blind)

#24375D

Tritanopia (blue-blind)

#004549

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #153d5e;
/* rgb */ color: rgb(21, 61, 94);
/* oklch */ color: oklch(34.9% 0.073 246.9);

Tailwind

colors: {
  custom: {
    50: '#5d728c',
    500: '#153d5e',
    950: '#000000',
  },
}

SCSS

$custom: #153d5e;
$custom-light: #5d728c;
$custom-dark: #000000;

JSON

{
  "hex": "#153d5e",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 94
  },
  "hsl": {
    "h": 207.123,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.34938,
    "c": 0.07289,
    "h": 246.9
  },
  "luminance": 0.04305
}

Semantic roles & 50–950 ramp

primary

#153D5E

secondary

#956339

accent

#8C41E7

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #153D5E

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

Preview Lab → · Contrast checker → · Palette generator →