#153A6B#153A6B

#153A6B is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 35.1% C 0.095 H 256.7°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#153A6B
RGB	rgb(21, 58, 107)
HSL	hsl(214, 67%, 25%)
HSV	hsv(214, 80%, 42%)
CMYK	cmyk(80.4%, 45.8%, 0%, 58%)
CIE-LAB	lab(24.47, 6.11, -32.33)
CIE-LCH	lch(24.47, 32.91, 280.70°)
OKLab	oklab(35.06% -0.0219 -0.0926)
OKLCH	oklch(35.06% 0.095 256.7)
XYZ	xyz(4.4752, 4.2466, 14.4909)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A6B #6B4615

analogous

#15656B #153A6B #1B156B

triadic

#153A6B #6B153A #3A6B15

tetradic

#153A6B #6B1565 #6B4615 #156B1B

square

#153A6B #6B1565 #6B4615 #156B1B

split-complementary

#153A6B #6B1B15 #656B15

monochromatic

#050E1A #0B1E38 #153A6B #1F569E #2971D1

Accessibility & contrast

On white

11.36

#153A6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#153A6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A6B

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A6B	#FFFFFF	#000000	##FFFFFF
##153A6B	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#213E6D

Deuteranopia (green-blind)

#11366A

Tritanopia (blue-blind)

#00464D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #153a6b;
/* rgb */ color: rgb(21, 58, 107);
/* oklch */ color: oklch(35.1% 0.095 256.7);

Tailwind

colors: {
  custom: {
    50: '#606f96',
    500: '#153a6b',
    950: '#000000',
  },
}

SCSS

$custom: #153a6b;
$custom-light: #606f96;
$custom-dark: #000000;

JSON

{
  "hex": "#153a6b",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 107
  },
  "hsl": {
    "h": 214.186,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.35055,
    "c": 0.09514,
    "h": 256.7
  },
  "luminance": 0.04247
}

Semantic roles & 50–950 ramp

primary

#153A6B

secondary

#A2753A

accent

#A03EEA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #153A6B

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

Preview Lab → · Contrast checker → · Palette generator →