#153C7A#153C7A

#153C7A is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.7% C 0.115 H 259.5°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#153C7A
RGB	rgb(21, 60, 122)
HSL	hsl(217, 71%, 28%)
HSV	hsv(217, 83%, 48%)
CMYK	cmyk(82.8%, 50.8%, 0%, 52.2%)
CIE-LAB	lab(26.14, 10.99, -39.19)
CIE-LCH	lch(26.14, 40.71, 285.67°)
OKLab	oklab(36.68% -0.0208 -0.1127)
OKLCH	oklch(36.68% 0.115 259.5)
XYZ	xyz(5.4367, 4.7956, 19.0477)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C7A #7A5315

analogous

#156E7A #153C7A #21157A

triadic

#153C7A #7A153C #3C7A15

tetradic

#153C7A #7A156E #7A5315 #157A21

square

#153C7A #7A156E #7A5315 #157A21

split-complementary

#153C7A #7A2115 #6E7A15

monochromatic

#040D1A #0C2246 #153C7A #1E56AE #2E71DB

Accessibility & contrast

On white

10.72

#153C7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#153C7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C7A

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C7A	#FFFFFF	#000000	##FFFFFF
##153C7A	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17437C

Deuteranopia (green-blind)

#003A79

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #153c7a;
/* rgb */ color: rgb(21, 60, 122);
/* oklch */ color: oklch(36.7% 0.115 259.5);

Tailwind

colors: {
  custom: {
    50: '#6471a1',
    500: '#153c7a',
    950: '#000000',
  },
}

SCSS

$custom: #153c7a;
$custom-light: #6471a1;
$custom-dark: #000000;

JSON

{
  "hex": "#153c7a",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 122
  },
  "hsl": {
    "h": 216.832,
    "s": 70.629,
    "l": 28.039
  },
  "oklch": {
    "l": 0.36682,
    "c": 0.11463,
    "h": 259.5
  },
  "luminance": 0.04796
}

Semantic roles & 50–950 ramp

primary

#153C7A

secondary

#AF833B

accent

#A83AED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070F

muted

#7A7A7E

Preview Lab

Preview with #153C7A

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

Preview Lab → · Contrast checker → · Palette generator →