#153C64#153C64

#153C64 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.1% C 0.082 H 251.8°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#153C64
RGB	rgb(21, 60, 100)
HSL	hsl(210, 65%, 24%)
HSV	hsv(210, 79%, 39%)
CMYK	cmyk(79%, 40%, 0%, 60.8%)
CIE-LAB	lab(24.67, 1.80, -27.50)
CIE-LCH	lch(24.67, 27.56, 273.74°)
OKLab	oklab(35.07% -0.0257 -0.0783)
OKLCH	oklch(35.07% 0.082 251.8)
XYZ	xyz(4.2245, 4.3108, 12.6635)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C64 #643D15

analogous

#156364 #153C64 #161564

triadic

#153C64 #64153C #3C6415

tetradic

#153C64 #641563 #643D15 #156416

square

#153C64 #641563 #643D15 #156416

split-complementary

#153C64 #641615 #636415

monochromatic

#050F19 #0A1E31 #153C64 #205A97 #2A79C9

Accessibility & contrast

On white

11.28

#153C64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#153C64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C64

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C64	#FFFFFF	#000000	##FFFFFF
##153C64	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)

#293F66

Deuteranopia (green-blind)

#1D3763

Tritanopia (blue-blind)

#00454B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #153c64;
/* rgb */ color: rgb(21, 60, 100);
/* oklch */ color: oklch(35.1% 0.082 251.8);

Tailwind

colors: {
  custom: {
    50: '#5f7190',
    500: '#153c64',
    950: '#000000',
  },
}

SCSS

$custom: #153c64;
$custom-light: #5f7190;
$custom-dark: #000000;

JSON

{
  "hex": "#153c64",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 100
  },
  "hsl": {
    "h": 210.38,
    "s": 65.289,
    "l": 23.725
  },
  "oklch": {
    "l": 0.35068,
    "c": 0.08245,
    "h": 251.8
  },
  "luminance": 0.04311
}

Semantic roles & 50–950 ramp

primary

#153C64

secondary

#9B6B3A

accent

#9540E8

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #153C64

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

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