#153B6F#153B6F

#153B6F is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.6% C 0.100 H 257.3°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#153B6F
RGB	rgb(21, 59, 111)
HSL	hsl(215, 68%, 26%)
HSV	hsv(215, 81%, 44%)
CMYK	cmyk(81.1%, 46.8%, 0%, 56.5%)
CIE-LAB	lab(25.06, 7.08, -33.96)
CIE-LCH	lch(25.06, 34.69, 281.78°)
OKLab	oklab(35.6% -0.022 -0.0973)
OKLCH	oklch(35.6% 0.1 257.3)
XYZ	xyz(4.7414, 4.4345, 15.6419)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B6F #6F4915

analogous

#15686F #153B6F #1C156F

triadic

#153B6F #6F153B #3B6F15

tetradic

#153B6F #6F1568 #6F4915 #156F1C

square

#153B6F #6F1568 #6F4915 #156F1C

split-complementary

#153B6F #6F1C15 #686F15

monochromatic

#050E1A #0B203C #153B6F #1F56A2 #2872D6

Accessibility & contrast

On white

11.13

#153B6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#153B6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B6F

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B6F	#FFFFFF	#000000	##FFFFFF
##153B6F	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204071

Deuteranopia (green-blind)

#0D386E

Tritanopia (blue-blind)

#00474F

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #153b6f;
/* rgb */ color: rgb(21, 59, 111);
/* oklch */ color: oklch(35.6% 0.100 257.3);

Tailwind

colors: {
  custom: {
    50: '#617099',
    500: '#153b6f',
    950: '#000000',
  },
}

SCSS

$custom: #153b6f;
$custom-light: #617099;
$custom-dark: #000000;

JSON

{
  "hex": "#153b6f",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 111
  },
  "hsl": {
    "h": 214.667,
    "s": 68.182,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35597,
    "c": 0.09979,
    "h": 257.3
  },
  "luminance": 0.04435
}

Semantic roles & 50–950 ramp

primary

#153B6F

secondary

#A5783A

accent

#A13DEB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #153B6F

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

Preview Lab → · Contrast checker → · Palette generator →