#153A5F#153A5F

#153A5F is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.2% C 0.078 H 251.2°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#153A5F
RGB	rgb(21, 58, 95)
HSL	hsl(210, 64%, 23%)
HSV	hsv(210, 78%, 37%)
CMYK	cmyk(77.9%, 38.9%, 0%, 62.7%)
CIE-LAB	lab(23.71, 1.11, -25.78)
CIE-LCH	lch(23.71, 25.81, 272.46°)
OKLab	oklab(34.21% -0.025 -0.0733)
OKLCH	oklch(34.21% 0.078 251.2)
XYZ	xyz(3.8871, 4.0113, 11.3937)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A5F #5F3A15

analogous

#155F5F #153A5F #15155F

triadic

#153A5F #5F153A #3A5F15

tetradic

#153A5F #5F155F #5F3A15 #155F15

square

#153A5F #5F155F #5F3A15 #155F15

split-complementary

#153A5F #5F1515 #5F5F15

monochromatic

#060F19 #0A1B2D #153A5F #205991 #2B77C3

Accessibility & contrast

On white

11.65

#153A5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#153A5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A5F

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A5F	#FFFFFF	#000000	##FFFFFF
##153A5F	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293C61

Deuteranopia (green-blind)

#1E355E

Tritanopia (blue-blind)

#004348

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #153a5f;
/* rgb */ color: rgb(21, 58, 95);
/* oklch */ color: oklch(34.2% 0.078 251.2);

Tailwind

colors: {
  custom: {
    50: '#5e6f8c',
    500: '#153a5f',
    950: '#000000',
  },
}

SCSS

$custom: #153a5f;
$custom-light: #5e6f8c;
$custom-dark: #000000;

JSON

{
  "hex": "#153a5f",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 95
  },
  "hsl": {
    "h": 210,
    "s": 63.793,
    "l": 22.745
  },
  "oklch": {
    "l": 0.34214,
    "c": 0.07751,
    "h": 251.2
  },
  "luminance": 0.04012
}

Semantic roles & 50–950 ramp

primary

#153A5F

secondary

#96683A

accent

#9441E7

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #153A5F

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

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