#153B51#153B51

#153B51 is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.6% C 0.058 H 237.4°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#153B51
RGB	rgb(21, 59, 81)
HSL	hsl(202, 59%, 20%)
HSV	hsv(202, 74%, 32%)
CMYK	cmyk(74.1%, 27.2%, 0%, 68.2%)
CIE-LAB	lab(23.27, -5.22, -17.27)
CIE-LCH	lch(23.27, 18.05, 253.18°)
OKLab	oklab(33.62% -0.031 -0.0486)
OKLCH	oklch(33.62% 0.058 237.4)
XYZ	xyz(3.3579, 3.8811, 8.3551)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B51 #512B15

analogous

#155149 #153B51 #151D51

triadic

#153B51 #51153B #3B5115

tetradic

#153B51 #491551 #512B15 #1D5115

square

#153B51 #491551 #512B15 #1D5115

split-complementary

#153B51 #51151D #514915

monochromatic

#061218 #081820 #153B51 #225E82 #2E82B2

Accessibility & contrast

On white

11.82

#153B51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#153B51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B51

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B51	#FFFFFF	#000000	##FFFFFF
##153B51	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313B52

Deuteranopia (green-blind)

#283551

Tritanopia (blue-blind)

#004142

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #153b51;
/* rgb */ color: rgb(21, 59, 81);
/* oklch */ color: oklch(33.6% 0.058 237.4);

Tailwind

colors: {
  custom: {
    50: '#5b7082',
    500: '#153b51',
    950: '#000000',
  },
}

SCSS

$custom: #153b51;
$custom-light: #5b7082;
$custom-dark: #000000;

JSON

{
  "hex": "#153b51",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 81
  },
  "hsl": {
    "h": 202,
    "s": 58.824,
    "l": 20
  },
  "oklch": {
    "l": 0.33618,
    "c": 0.05765,
    "h": 237.4
  },
  "luminance": 0.03881
}

Semantic roles & 50–950 ramp

primary

#153B51

secondary

#895639

accent

#7F46E2

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #153B51

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

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