#30739B#30739B

#30739B is a mid, moderate cyan. Relative luminance 0.153; OKLCH L 53.1% C 0.092 H 238.3°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#30739B
RGB	rgb(48, 115, 155)
HSL	hsl(202, 53%, 40%)
HSV	hsv(202, 69%, 61%)
CMYK	cmyk(69%, 25.8%, 0%, 39.2%)
CIE-LAB	lab(45.98, -7.82, -27.82)
CIE-LCH	lch(45.98, 28.89, 254.31°)
OKLab	oklab(53.07% -0.0484 -0.0783)
OKLCH	oklch(53.07% 0.092 238.3)
XYZ	xyz(13.2638, 15.2550, 33.2495)
Luminance	0.1526 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30739B #9B5830

analogous

#309B8E #30739B #303E9B

triadic

#30739B #9B3073 #739B30

tetradic

#30739B #8E309B #9B5830 #3E9B30

square

#30739B #8E309B #9B5830 #3E9B30

split-complementary

#30739B #9B303E #9B8E30

monochromatic

#132E3E #22506C #30739B #4394C5 #72AFD3

Accessibility & contrast

On white

5.18

#30739B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#30739B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #30739B

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30739B	#FFFFFF	#000000	##FFFFFF
##30739B	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60739D

Deuteranopia (green-blind)

#52689A

Tritanopia (blue-blind)

#007D81

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #30739b;
/* rgb */ color: rgb(48, 115, 155);
/* oklch */ color: oklch(53.1% 0.092 238.3);

Tailwind

colors: {
  custom: {
    50: '#759bb8',
    500: '#30739b',
    950: '#000000',
  },
}

SCSS

$custom: #30739b;
$custom-light: #759bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#30739b",
  "rgb": {
    "r": 48,
    "g": 115,
    "b": 155
  },
  "hsl": {
    "h": 202.43,
    "s": 52.709,
    "l": 39.804
  },
  "oklch": {
    "l": 0.53069,
    "c": 0.09205,
    "h": 238.3
  },
  "luminance": 0.15256
}

Semantic roles & 50–950 ramp

primary

#30739B

secondary

#BB896C

accent

#824CDC

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #30739B

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

Preview Lab → · Contrast checker → · Palette generator →