#30678C
Closest named color: Denim (#3B638C). oklch(49.3% 0.083 240.8), rgb(48, 103, 140).
Aa
White text reads best on this color (6.09:1).
About this color
#30678C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.083 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.015 away. White text reads best on it, at 6.09:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.44:1 |
| White text | 6.09:1 |
Values
| HEX | #30678C |
| RGB | rgb(48, 103, 140) |
| HSL | hsl(204, 49%, 37%) |
| OKLCH | oklch(49.3% 0.083 240.8) |
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 #30678C | 6.09:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #30678C | 3.44:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #30678C text on white | 6.09:1 | AA | Lc 80.2 | Fine for body text |
| #30678C text on black | 3.44:1 | AA large text | Lc -21.6 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#AAC5D9
oklch(81% 0.041 240.1)
-
Step 400
400
#7CA6C5
oklch(70.6% 0.064 240.8)
-
Step 500
500
#5A90B7
oklch(63.1% 0.082 241.2)
-
Step 600
600
#3E7AA3
oklch(55.7% 0.089 240.8)
-
Step 700
700 (this color)
#30678C
oklch(49.3% 0.083 240.8)
-
Step 800
800
#285471
oklch(42.8% 0.069 239.9)
-
Step 900
900
#26455B
oklch(37.7% 0.053 241)
-
Step 950
950
#172936
oklch(27.2% 0.034 241)
#30678C 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) | #56678E | 0.043 |
| Deuteranopia (no green cones) | #4A5E8B | 0.035 |
| Tritanopia (no blue cones) | #007074 | 0.059 |
| Achromatopsia (no color) | #626262 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #30678C
#30678C
oklch(49.3% 0.083 240.8)
- #83552C
#83552C
oklch(49.2% 0.083 60.6)
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 #30678C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.015
- Peacock Blue #016795 ΔE 0.026
- Ocean Blue #03719C ΔE 0.036
- Dusky Blue #475F94 ΔE 0.037
- Light Navy Blue #2E5A88 ΔE 0.039
- Sea Blue #047495 ΔE 0.039
- Denim Blue #3B5B92 ΔE 0.040
- Muted Blue #3B719F ΔE 0.041
Use #30678C 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.