#153F6A#153F6A

#153F6A is a dark, moderate cyan. Relative luminance 0.048; OKLCH L 36.2% C 0.088 H 252.0°. Best body text is #FFFFFF at 10.76:1 contrast (WCAG AA passes).

Color values

HEX	#153F6A
RGB	rgb(21, 63, 106)
HSL	hsl(210, 67%, 25%)
HSV	hsv(210, 80%, 42%)
CMYK	cmyk(80.2%, 40.6%, 0%, 58.4%)
CIE-LAB	lab(26.02, 2.22, -29.22)
CIE-LCH	lch(26.02, 29.30, 274.35°)
OKLab	oklab(36.24% -0.0271 -0.0833)
OKLCH	oklch(36.24% 0.088 252)
XYZ	xyz(4.6873, 4.7545, 14.3035)
Luminance	0.0476 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F6A #6A4015

analogous

#15696A #153F6A #16156A

triadic

#153F6A #6A153F #3F6A15

tetradic

#153F6A #6A1569 #6A4015 #156A16

square

#153F6A #6A1569 #6A4015 #156A16

split-complementary

#153F6A #6A1615 #696A15

monochromatic

#050F1A #0B2137 #153F6A #1F5D9D #297CD0

Accessibility & contrast

On white

10.76

#153F6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#153F6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F6A

10.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F6A	#FFFFFF	#000000	##FFFFFF
##153F6A	1.00	10.76	1.95	10.76
#FFFFFF	10.76	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B426C

Deuteranopia (green-blind)

#1E3A69

Tritanopia (blue-blind)

#00494F

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #153f6a;
/* rgb */ color: rgb(21, 63, 106);
/* oklch */ color: oklch(36.2% 0.088 252.0);

Tailwind

colors: {
  custom: {
    50: '#607395',
    500: '#153f6a',
    950: '#000000',
  },
}

SCSS

$custom: #153f6a;
$custom-light: #607395;
$custom-dark: #000000;

JSON

{
  "hex": "#153f6a",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 106
  },
  "hsl": {
    "h": 210.353,
    "s": 66.929,
    "l": 24.902
  },
  "oklch": {
    "l": 0.36243,
    "c": 0.08761,
    "h": 252
  },
  "luminance": 0.04755
}

Semantic roles & 50–950 ramp

primary

#153F6A

secondary

#A16E3A

accent

#953EEA

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05080D

muted

#7A7B7E

Preview Lab

Preview with #153F6A

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

Preview Lab → · Contrast checker → · Palette generator →