#306498
Closest named color: Denim (#3B638C). oklch(49.3% 0.101 250.6), rgb(48, 100, 152).
Aa
White text reads best on this color (6.17:1).
About this color
#306498 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.101 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.021 away. White text reads best on it, at 6.17:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.40:1 |
| White text | 6.17:1 |
Values
| HEX | #306498 |
| RGB | rgb(48, 100, 152) |
| HSL | hsl(210, 52%, 39%) |
| OKLCH | oklch(49.3% 0.101 250.6) |
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 #306498 | 6.17:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #306498 | 3.40:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #306498 text on white | 6.17:1 | AA | Lc 80.6 | Fine for body text |
| #306498 text on black | 3.40:1 | AA large text | Lc -21.3 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEB
oklch(88.5% 0.027 249.9)
-
Step 300
300
#AAC4E0
oklch(81% 0.049 250.4)
-
Step 400
400
#7CA4D0
oklch(70.6% 0.078 251.3)
-
Step 500
500
#598DC4
oklch(63% 0.1 251)
-
Step 600
600
#3E77B0
oklch(55.7% 0.108 250.3)
-
Step 700
700 (this color)
#306498
oklch(49.3% 0.101 250.6)
-
Step 800
800
#28517B
oklch(42.6% 0.084 250.9)
-
Step 900
900
#254463
oklch(37.8% 0.065 249.9)
-
Step 950
950
#16283A
oklch(27.1% 0.041 249.6)
#306498 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) | #4D679A | 0.034 |
| Deuteranopia (no green cones) | #3F5D97 | 0.023 |
| Tritanopia (no blue cones) | #007077 | 0.077 |
| Achromatopsia (no color) | #616161 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306498
#306498
oklch(49.3% 0.101 250.6)
- #85560F
#85560F
oklch(49.4% 0.101 70.6)
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 #306498, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.021
- Peacock Blue #016795 ΔE 0.025
- Dusky Blue #475F94 ΔE 0.026
- Denim Blue #3B5B92 ΔE 0.026
- Light Navy Blue #2E5A88 ΔE 0.036
- Ocean Blue #03719C ΔE 0.039
- Muted Blue #3B719F ΔE 0.041
- Mid Blue #276AB3 ΔE 0.043
Use #306498 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.