#153C6B#153C6B

#153C6B is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.6% C 0.093 H 255.1°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#153C6B
RGB	rgb(21, 60, 107)
HSL	hsl(213, 67%, 25%)
HSV	hsv(213, 80%, 42%)
CMYK	cmyk(80.4%, 43.9%, 0%, 58%)
CIE-LAB	lab(25.11, 4.71, -31.31)
CIE-LCH	lch(25.11, 31.66, 278.55°)
OKLab	oklab(35.55% -0.0238 -0.0895)
OKLCH	oklch(35.55% 0.093 255.1)
XYZ	xyz(4.5780, 4.4522, 14.5251)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C6B #6B4415

analogous

#15676B #153C6B #19156B

triadic

#153C6B #6B153C #3C6B15

tetradic

#153C6B #6B1567 #6B4415 #156B19

square

#153C6B #6B1567 #6B4415 #156B19

split-complementary

#153C6B #6B1915 #676B15

monochromatic

#050E1A #0B1F38 #153C6B #1F599E #2975D1

Accessibility & contrast

On white

11.11

#153C6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#153C6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C6B

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C6B	#FFFFFF	#000000	##FFFFFF
##153C6B	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25406D

Deuteranopia (green-blind)

#16386A

Tritanopia (blue-blind)

#00474E

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #153c6b;
/* rgb */ color: rgb(21, 60, 107);
/* oklch */ color: oklch(35.6% 0.093 255.1);

Tailwind

colors: {
  custom: {
    50: '#607196',
    500: '#153c6b',
    950: '#000000',
  },
}

SCSS

$custom: #153c6b;
$custom-light: #607196;
$custom-dark: #000000;

JSON

{
  "hex": "#153c6b",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 107
  },
  "hsl": {
    "h": 212.791,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.35554,
    "c": 0.09264,
    "h": 255.1
  },
  "luminance": 0.04453
}

Semantic roles & 50–950 ramp

primary

#153C6B

secondary

#A2733A

accent

#9C3EEA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #153C6B

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

Preview Lab → · Contrast checker → · Palette generator →