#153F5E#153F5E

#153F5E is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.5% C 0.071 H 244.3°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#153F5E
RGB	rgb(21, 63, 94)
HSL	hsl(205, 63%, 23%)
HSV	hsv(205, 78%, 37%)
CMYK	cmyk(77.7%, 33%, 0%, 63.1%)
CIE-LAB	lab(25.33, -2.69, -22.58)
CIE-LCH	lch(25.33, 22.74, 263.21°)
OKLab	oklab(35.47% -0.0308 -0.0639)
OKLCH	oklch(35.47% 0.071 244.3)
XYZ	xyz(4.1064, 4.5221, 11.2439)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F5E #5E3415

analogous

#155E58 #153F5E #151B5E

triadic

#153F5E #5E153F #3F5E15

tetradic

#153F5E #58155E #5E3415 #1B5E15

square

#153F5E #58155E #5E3415 #1B5E15

split-complementary

#153F5E #5E151B #5E5815

monochromatic

#061119 #0A1D2C #153F5E #206190 #2B82C2

Accessibility & contrast

On white

11.03

#153F5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#153F5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F5E

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F5E	#FFFFFF	#000000	##FFFFFF
##153F5E	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31405F

Deuteranopia (green-blind)

#27395D

Tritanopia (blue-blind)

#00474A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #153f5e;
/* rgb */ color: rgb(21, 63, 94);
/* oklch */ color: oklch(35.5% 0.071 244.3);

Tailwind

colors: {
  custom: {
    50: '#5e738c',
    500: '#153f5e',
    950: '#000000',
  },
}

SCSS

$custom: #153f5e;
$custom-light: #5e738c;
$custom-dark: #000000;

JSON

{
  "hex": "#153f5e",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 94
  },
  "hsl": {
    "h": 205.479,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.35469,
    "c": 0.07095,
    "h": 244.3
  },
  "luminance": 0.04523
}

Semantic roles & 50–950 ramp

primary

#153F5E

secondary

#956039

accent

#8741E7

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #153F5E

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

Preview Lab → · Contrast checker → · Palette generator →