#306898
Closest named color: Denim (#3B638C). oklch(50.2% 0.097 247.1), rgb(48, 104, 152).
Aa
White text reads best on this color (5.90:1).
About this color
#306898 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.097 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.022 away. White text reads best on it, at 5.90:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.55:1 |
| White text | 5.90:1 |
Values
| HEX | #306898 |
| RGB | rgb(48, 104, 152) |
| HSL | hsl(208, 52%, 39%) |
| OKLCH | oklch(50.2% 0.097 247.1) |
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 #306898 | 5.90:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #306898 | 3.55:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #306898 text on white | 5.90:1 | AA | Lc 79.3 | Fine for body text |
| #306898 text on black | 3.55:1 | AA large text | Lc -22.5 | 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
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEA
oklch(88.5% 0.026 248.1)
-
Step 300
300
#A9C4DE
oklch(80.9% 0.047 247.4)
-
Step 400
400
#7AA5CD
oklch(70.6% 0.075 247.1)
-
Step 500
500
#578FC0
oklch(63.2% 0.095 246.4)
-
Step 600
600
#3B78AD
oklch(55.6% 0.104 247.2)
-
Step 700
700 (this color)
#306898
oklch(50.2% 0.097 247.1)
-
Step 800
800
#265278
oklch(42.6% 0.08 247.1)
-
Step 900
900
#244461
oklch(37.6% 0.063 247.6)
-
Step 950
950
#162839
oklch(27% 0.04 248.2)
#306898 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) | #536A9A | 0.039 |
| Deuteranopia (no green cones) | #446097 | 0.028 |
| Tritanopia (no blue cones) | #007379 | 0.072 |
| Achromatopsia (no color) | #646464 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306898
#306898
oklch(50.2% 0.097 247.1)
- #88581C
#88581C
oklch(50.3% 0.097 67.6)
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 #306898, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.022
- Peacock Blue #016795 ΔE 0.024
- Ocean Blue #03719C ΔE 0.030
- Muted Blue #3B719F ΔE 0.030
- Dusky Blue #475F94 ΔE 0.032
- Denim Blue #3B5B92 ΔE 0.037
- Sea Blue #047495 ΔE 0.040
- French Blue #436BAD ΔE 0.040
Use #306898 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.