#153E6B#153E6B

#153E6B is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 36.1% C 0.090 H 253.4°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#153E6B
RGB	rgb(21, 62, 107)
HSL	hsl(211, 67%, 25%)
HSV	hsv(211, 80%, 42%)
CMYK	cmyk(80.4%, 42.1%, 0%, 58%)
CIE-LAB	lab(25.76, 3.32, -30.27)
CIE-LCH	lch(25.76, 30.46, 276.26°)
OKLab	oklab(36.06% -0.0258 -0.0864)
OKLCH	oklch(36.06% 0.09 253.4)
XYZ	xyz(4.6847, 4.6657, 14.5607)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153E6B #6B4215

analogous

#15696B #153E6B #17156B

triadic

#153E6B #6B153E #3E6B15

tetradic

#153E6B #6B1569 #6B4215 #156B17

square

#153E6B #6B1569 #6B4215 #156B17

split-complementary

#153E6B #6B1715 #696B15

monochromatic

#050F1A #0B2038 #153E6B #1F5C9E #2979D1

Accessibility & contrast

On white

10.86

#153E6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#153E6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153E6B

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153E6B	#FFFFFF	#000000	##FFFFFF
##153E6B	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29416D

Deuteranopia (green-blind)

#1B396A

Tritanopia (blue-blind)

#00494F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #153e6b;
/* rgb */ color: rgb(21, 62, 107);
/* oklch */ color: oklch(36.1% 0.090 253.4);

Tailwind

colors: {
  custom: {
    50: '#607295',
    500: '#153e6b',
    950: '#000000',
  },
}

SCSS

$custom: #153e6b;
$custom-light: #607295;
$custom-dark: #000000;

JSON

{
  "hex": "#153e6b",
  "rgb": {
    "r": 21,
    "g": 62,
    "b": 107
  },
  "hsl": {
    "h": 211.395,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.36057,
    "c": 0.09022,
    "h": 253.4
  },
  "luminance": 0.04666
}

Semantic roles & 50–950 ramp

primary

#153E6B

secondary

#A2703A

accent

#983EEA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#05080D

muted

#7A7B7E

Preview Lab

Preview with #153E6B

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

Preview Lab → · Contrast checker → · Palette generator →