#153B5D#153B5D

#153B5D is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.3% C 0.074 H 248.7°. Best body text is #FFFFFF at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#153B5D
RGB	rgb(21, 59, 93)
HSL	hsl(208, 63%, 22%)
HSV	hsv(208, 77%, 36%)
CMYK	cmyk(77.4%, 36.6%, 0%, 63.5%)
CIE-LAB	lab(23.93, -0.40, -24.14)
CIE-LCH	lch(23.93, 24.14, 269.05°)
OKLab	oklab(34.35% -0.0267 -0.0685)
OKLCH	oklch(34.35% 0.074 248.7)
XYZ	xyz(3.8483, 4.0772, 10.9380)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B5D #5D3715

analogous

#155D5B #153B5D #15175D

triadic

#153B5D #5D153B #3B5D15

tetradic

#153B5D #5B155D #5D3715 #175D15

square

#153B5D #5B155D #5D3715 #175D15

split-complementary

#153B5D #5D1517 #5D5B15

monochromatic

#061019 #0A1B2B #153B5D #205B8F #2C7AC1

Accessibility & contrast

On white

11.57

#153B5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#153B5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B5D

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B5D	#FFFFFF	#000000	##FFFFFF
##153B5D	1.00	11.57	1.82	11.57
#FFFFFF	11.57	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3D5E

Deuteranopia (green-blind)

#21365C

Tritanopia (blue-blind)

#004347

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #153b5d;
/* rgb */ color: rgb(21, 59, 93);
/* oklch */ color: oklch(34.3% 0.074 248.7);

Tailwind

colors: {
  custom: {
    50: '#5d708b',
    500: '#153b5d',
    950: '#000000',
  },
}

SCSS

$custom: #153b5d;
$custom-light: #5d708b;
$custom-dark: #000000;

JSON

{
  "hex": "#153b5d",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 93
  },
  "hsl": {
    "h": 208.333,
    "s": 63.158,
    "l": 22.353
  },
  "oklch": {
    "l": 0.34346,
    "c": 0.07355,
    "h": 248.7
  },
  "luminance": 0.04078
}

Semantic roles & 50–950 ramp

primary

#153B5D

secondary

#946439

accent

#8F42E6

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #153B5D

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

Preview Lab → · Contrast checker → · Palette generator →