#306A8A
Closest named color: Denim (#3B638C). oklch(50% 0.079 235.6), rgb(48, 106, 138).
Aa
White text reads best on this color (5.90:1).
About this color
#306A8A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.079 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.023 away. White text reads best on it, at 5.90:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.55:1 |
| White text | 5.90:1 |
Values
| HEX | #306A8A |
| RGB | rgb(48, 106, 138) |
| HSL | hsl(201, 48%, 36%) |
| OKLCH | oklch(50% 0.079 235.6) |
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 #306A8A | 5.90:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #306A8A | 3.55:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #306A8A text on white | 5.90:1 | AA | Lc 79.3 | Fine for body text |
| #306A8A 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CCDCE5
oklch(88.5% 0.021 232.2)
-
Step 300
300
#AAC5D6
oklch(80.9% 0.038 235.6)
-
Step 400
400
#7BA7C2
oklch(70.6% 0.062 235.7)
-
Step 500
500
#5891B2
oklch(63% 0.078 235.3)
-
Step 600
600
#3C7B9E
oklch(55.6% 0.085 235.4)
-
Step 700
700 (this color)
#306A8A
oklch(50% 0.079 235.6)
-
Step 800
800
#27546E
oklch(42.6% 0.066 236.5)
-
Step 900
900
#254659
oklch(37.8% 0.051 235.5)
-
Step 950
950
#162934
oklch(27% 0.032 235.1)
#306A8A 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) | #5B698C | 0.049 |
| Deuteranopia (no green cones) | #4E6089 | 0.041 |
| Tritanopia (no blue cones) | #007275 | 0.053 |
| Achromatopsia (no color) | #646464 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306A8A
#306A8A
oklch(50% 0.079 235.6)
- #865735
#865735
oklch(50.1% 0.079 55.7)
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 #306A8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.023
- Peacock Blue #016795 ΔE 0.031
- Sea Blue #047495 ΔE 0.033
- Ocean Blue #03719C ΔE 0.033
- Muted Blue #3B719F ΔE 0.039
- Metallic Blue #4F738E ΔE 0.045
- Dusky Blue #475F94 ΔE 0.045
- Slate #516572 ΔE 0.047
Use #306A8A 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.