#153A55#153A55

#153A55 is a dark, moderate cyan. Relative luminance 0.038; OKLCH L 33.6% C 0.064 H 243.5°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#153A55
RGB	rgb(21, 58, 85)
HSL	hsl(205, 60%, 21%)
HSV	hsv(205, 75%, 33%)
CMYK	cmyk(75.3%, 31.8%, 0%, 66.7%)
CIE-LAB	lab(23.14, -2.97, -20.13)
CIE-LCH	lch(23.14, 20.34, 261.61°)
OKLab	oklab(33.58% -0.0283 -0.0569)
OKLCH	oklch(33.58% 0.064 243.5)
XYZ	xyz(3.4614, 3.8410, 9.1515)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A55 #553015

analogous

#155550 #153A55 #151A55

triadic

#153A55 #55153A #3A5515

tetradic

#153A55 #501555 #553015 #1A5515

square

#153A55 #501555 #553015 #1A5515

split-complementary

#153A55 #55151A #555015

monochromatic

#061119 #091924 #153A55 #215B86 #2D7DB7

Accessibility & contrast

On white

11.88

#153A55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#153A55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A55

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A55	#FFFFFF	#000000	##FFFFFF
##153A55	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3B56

Deuteranopia (green-blind)

#253454

Tritanopia (blue-blind)

#004143

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #153a55;
/* rgb */ color: rgb(21, 58, 85);
/* oklch */ color: oklch(33.6% 0.064 243.5);

Tailwind

colors: {
  custom: {
    50: '#5b7085',
    500: '#153a55',
    950: '#000000',
  },
}

SCSS

$custom: #153a55;
$custom-light: #5b7085;
$custom-dark: #000000;

JSON

{
  "hex": "#153a55",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 85
  },
  "hsl": {
    "h": 205.313,
    "s": 60.377,
    "l": 20.784
  },
  "oklch": {
    "l": 0.33579,
    "c": 0.06353,
    "h": 243.5
  },
  "luminance": 0.03841
}

Semantic roles & 50–950 ramp

primary

#153A55

secondary

#8D5C39

accent

#8744E4

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #153A55

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

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