#153B4D#153B4D

#153B4D is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.4% C 0.053 H 232.0°. Best body text is #FFFFFF at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#153B4D
RGB	rgb(21, 59, 77)
HSL	hsl(199, 57%, 19%)
HSV	hsv(199, 73%, 30%)
CMYK	cmyk(72.7%, 23.4%, 0%, 69.8%)
CIE-LAB	lab(23.08, -6.78, -14.93)
CIE-LCH	lch(23.08, 16.40, 245.59°)
OKLab	oklab(33.4% -0.0327 -0.0418)
OKLCH	oklch(33.4% 0.053 232)
XYZ	xyz(3.2123, 3.8228, 7.5883)
Luminance	0.0382 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B4D #4D2715

analogous

#154D43 #153B4D #151F4D

triadic

#153B4D #4D153B #3B4D15

tetradic

#153B4D #43154D #4D2715 #1F4D15

square

#153B4D #43154D #4D2715 #1F4D15

split-complementary

#153B4D #4D151F #4D4315

monochromatic

#071218 #08161D #153B4D #22607D #2F85AD

Accessibility & contrast

On white

11.90

#153B4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#153B4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B4D

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B4D	#FFFFFF	#000000	##FFFFFF
##153B4D	1.00	11.90	1.76	11.90
#FFFFFF	11.90	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323A4E

Deuteranopia (green-blind)

#2A354D

Tritanopia (blue-blind)

#004041

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #153b4d;
/* rgb */ color: rgb(21, 59, 77);
/* oklch */ color: oklch(33.4% 0.053 232.0);

Tailwind

colors: {
  custom: {
    50: '#5a707f',
    500: '#153b4d',
    950: '#000000',
  },
}

SCSS

$custom: #153b4d;
$custom-light: #5a707f;
$custom-dark: #000000;

JSON

{
  "hex": "#153b4d",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 77
  },
  "hsl": {
    "h": 199.286,
    "s": 57.143,
    "l": 19.216
  },
  "oklch": {
    "l": 0.33395,
    "c": 0.05308,
    "h": 232
  },
  "luminance": 0.03823
}

Semantic roles & 50–950 ramp

primary

#153B4D

secondary

#855139

accent

#7947E0

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #153B4D

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

Preview Lab → · Contrast checker → · Palette generator →