#30809E
Closest named color: Cerulean (#457B9D). oklch(56.4% 0.089 226.6), rgb(48, 128, 158).
Aa
Black text reads best on this color (4.70:1).
About this color
#30809E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 56%, its chroma 0.089 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.020 away. Black text reads best on it, at 4.70:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.70:1 |
| White text | 4.46:1 |
Values
| HEX | #30809E |
| RGB | rgb(48, 128, 158) |
| HSL | hsl(196, 53%, 40%) |
| OKLCH | oklch(56.4% 0.089 226.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #30809E | 4.46:1 | AA large text | Lc -76.2 | Fine for body text |
| Black text on #30809E | 4.70:1 | AA | Lc 33.4 | Non-text elements, placeholder text |
| #30809E text on white | 4.46:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #30809E text on black | 4.70:1 | AA | Lc -31.0 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CBDCE5
oklch(88.4% 0.022 230.6)
-
Step 300
300
#A6C6D5
oklch(80.8% 0.04 227.9)
-
Step 400
400
#75A9C0
oklch(70.7% 0.064 227.4)
-
Step 500
500
#4E94B0
oklch(63.2% 0.082 226.4)
-
Step 600
600 (this color)
#30809E
oklch(56.4% 0.089 226.6)
-
Step 700
700
#1E6A85
oklch(49.2% 0.083 226.5)
-
Step 800
800
#1C566C
oklch(42.6% 0.069 227.2)
-
Step 900
900
#1E4757
oklch(37.6% 0.053 226.4)
-
Step 950
950
#132A33
oklch(27.1% 0.033 225.6)
#30809E with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #707EA0 | 0.067 |
| Deuteranopia (no green cones) | #61729E | 0.059 |
| Tritanopia (no blue cones) | #00898A | 0.051 |
| Achromatopsia (no color) | #777777 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #30809E
#30809E
oklch(56.4% 0.089 226.6)
- #A16547
#A16547
oklch(56.5% 0.089 47)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #30809E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.020
- Teal Blue #01889F ΔE 0.026
- Stormy Blue #507B9C ΔE 0.029
- Ocean #017B92 ΔE 0.032
- Dull Blue #49759C ΔE 0.035
- Blue NCS #118AB2 ΔE 0.036
- Nice Blue #107AB0 ΔE 0.040
- Steel Blue #4682B4 ΔE 0.041
Use #30809E in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.