#153C51#153C51

#153C51 is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.9% C 0.057 H 235.6°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#153C51
RGB	rgb(21, 60, 81)
HSL	hsl(201, 59%, 20%)
HSV	hsv(201, 74%, 32%)
CMYK	cmyk(74.1%, 25.9%, 0%, 68.2%)
CIE-LAB	lab(23.62, -5.88, -16.73)
CIE-LCH	lch(23.62, 17.74, 250.64°)
OKLab	oklab(33.89% -0.0322 -0.047)
OKLCH	oklch(33.89% 0.057 235.6)
XYZ	xyz(3.4097, 3.9849, 8.3724)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C51 #512A15

analogous

#155148 #153C51 #151E51

triadic

#153C51 #51153C #3C5115

tetradic

#153C51 #481551 #512A15 #1E5115

square

#153C51 #481551 #512A15 #1E5115

split-complementary

#153C51 #51151E #514815

monochromatic

#061218 #081820 #153C51 #226082 #2E84B2

Accessibility & contrast

On white

11.69

#153C51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#153C51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C51

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C51	#FFFFFF	#000000	##FFFFFF
##153C51	1.00	11.69	1.80	11.69
#FFFFFF	11.69	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323C52

Deuteranopia (green-blind)

#2A3651

Tritanopia (blue-blind)

#004143

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #153c51;
/* rgb */ color: rgb(21, 60, 81);
/* oklch */ color: oklch(33.9% 0.057 235.6);

Tailwind

colors: {
  custom: {
    50: '#5b7182',
    500: '#153c51',
    950: '#000000',
  },
}

SCSS

$custom: #153c51;
$custom-light: #5b7182;
$custom-dark: #000000;

JSON

{
  "hex": "#153c51",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 81
  },
  "hsl": {
    "h": 201,
    "s": 58.824,
    "l": 20
  },
  "oklch": {
    "l": 0.33893,
    "c": 0.057,
    "h": 235.6
  },
  "luminance": 0.03985
}

Semantic roles & 50–950 ramp

primary

#153C51

secondary

#895539

accent

#7C46E2

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #153C51

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

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