#153F6B#153F6B

#153F6B is a dark, moderate cyan. Relative luminance 0.048; OKLCH L 36.3% C 0.089 H 252.5°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#153F6B
RGB	rgb(21, 63, 107)
HSL	hsl(211, 67%, 25%)
HSV	hsv(211, 80%, 42%)
CMYK	cmyk(80.4%, 41.1%, 0%, 58%)
CIE-LAB	lab(26.09, 2.64, -29.76)
CIE-LCH	lch(26.09, 29.87, 275.06°)
OKLab	oklab(36.31% -0.0268 -0.0849)
OKLCH	oklch(36.31% 0.089 252.5)
XYZ	xyz(4.7396, 4.7754, 14.5790)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F6B #6B4115

analogous

#156A6B #153F6B #16156B

triadic

#153F6B #6B153F #3F6B15

tetradic

#153F6B #6B156A #6B4115 #156B16

square

#153F6B #6B156A #6B4115 #156B16

split-complementary

#153F6B #6B1615 #6A6B15

monochromatic

#050F1A #0B2138 #153F6B #1F5D9E #297BD1

Accessibility & contrast

On white

10.74

#153F6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#153F6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F6B

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F6B	#FFFFFF	#000000	##FFFFFF
##153F6B	1.00	10.74	1.96	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A426D

Deuteranopia (green-blind)

#1D3A6A

Tritanopia (blue-blind)

#00494F

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #153f6b;
/* rgb */ color: rgb(21, 63, 107);
/* oklch */ color: oklch(36.3% 0.089 252.5);

Tailwind

colors: {
  custom: {
    50: '#607395',
    500: '#153f6b',
    950: '#000000',
  },
}

SCSS

$custom: #153f6b;
$custom-light: #607395;
$custom-dark: #000000;

JSON

{
  "hex": "#153f6b",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 107
  },
  "hsl": {
    "h": 210.698,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.36311,
    "c": 0.08904,
    "h": 252.5
  },
  "luminance": 0.04776
}

Semantic roles & 50–950 ramp

primary

#153F6B

secondary

#A26F3A

accent

#963EEA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#05080D

muted

#7A7B7E

Preview Lab

Preview with #153F6B

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

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