#153E57#153E57

#153E57 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.8% C 0.063 H 239.1°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#153E57
RGB	rgb(21, 62, 87)
HSL	hsl(203, 61%, 21%)
HSV	hsv(203, 76%, 34%)
CMYK	cmyk(75.9%, 28.7%, 0%, 65.9%)
CIE-LAB	lab(24.62, -4.83, -19.13)
CIE-LCH	lch(24.62, 19.73, 255.84°)
OKLab	oklab(34.78% -0.0322 -0.0539)
OKLCH	oklch(34.78% 0.063 239.1)
XYZ	xyz(3.7515, 4.2924, 9.6458)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153E57 #572E15

analogous

#15574F #153E57 #151D57

triadic

#153E57 #57153E #3E5715

tetradic

#153E57 #4F1557 #572E15 #1D5715

square

#153E57 #4F1557 #572E15 #1D5715

split-complementary

#153E57 #57151D #574F15

monochromatic

#061219 #091B26 #153E57 #216188 #2D84BA

Accessibility & contrast

On white

11.30

#153E57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#153E57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153E57

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153E57	#FFFFFF	#000000	##FFFFFF
##153E57	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323E58

Deuteranopia (green-blind)

#293857

Tritanopia (blue-blind)

#004447

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #153e57;
/* rgb */ color: rgb(21, 62, 87);
/* oklch */ color: oklch(34.8% 0.063 239.1);

Tailwind

colors: {
  custom: {
    50: '#5c7386',
    500: '#153e57',
    950: '#000000',
  },
}

SCSS

$custom: #153e57;
$custom-light: #5c7386;
$custom-dark: #000000;

JSON

{
  "hex": "#153e57",
  "rgb": {
    "r": 21,
    "g": 62,
    "b": 87
  },
  "hsl": {
    "h": 202.727,
    "s": 61.111,
    "l": 21.176
  },
  "oklch": {
    "l": 0.34783,
    "c": 0.06281,
    "h": 239.1
  },
  "luminance": 0.04293
}

Semantic roles & 50–950 ramp

primary

#153E57

secondary

#8F5A39

accent

#8044E4

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #153E57

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

Preview Lab → · Contrast checker → · Palette generator →