#305CAC
Closest named color: Mid Blue (#276AB3). oklch(48.7% 0.137 261.2), rgb(48, 92, 172).
Aa
White text reads best on this color (6.45:1).
About this color
#305CAC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.137 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.038 away. White text reads best on it, at 6.45:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.25:1 |
| White text | 6.45:1 |
Values
| HEX | #305CAC |
| RGB | rgb(48, 92, 172) |
| HSL | hsl(219, 56%, 43%) |
| OKLCH | oklch(48.7% 0.137 261.2) |
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 #305CAC | 6.45:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #305CAC | 3.25:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #305CAC text on white | 6.45:1 | AA | Lc 81.7 | Fine for body text |
| #305CAC text on black | 3.25:1 | AA large text | Lc -20.2 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CCDAF2
oklch(88.5% 0.036 261.3)
-
Step 300
300
#A9C2EC
oklch(81% 0.066 260.7)
-
Step 400
400
#7BA1E3
oklch(70.8% 0.106 261.1)
-
Step 500
500
#5988DB
oklch(63.1% 0.136 261)
-
Step 600
600
#3F70C8
oklch(55.6% 0.147 261.1)
-
Step 700
700 (this color)
#305CAC
oklch(48.7% 0.137 261.2)
-
Step 800
800
#294C8C
oklch(42.6% 0.114 261.3)
-
Step 900
900
#264070
oklch(37.7% 0.089 261.6)
-
Step 950
950
#162642
oklch(27% 0.057 260.9)
#305CAC 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) | #3364AF | 0.023 |
| Deuteranopia (no green cones) | #1859AA | 0.021 |
| Tritanopia (no blue cones) | #006F7B | 0.110 |
| Achromatopsia (no color) | #5E5E5E | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305CAC
#305CAC
oklch(48.7% 0.137 261.2)
- #7C5800
#7C5800
oklch(48.6% 0.1 81)
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 #305CAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.042
- Dusky Blue #475F94 ΔE 0.047
- French Blue #436BAD ΔE 0.049
- Dusk Blue #26538D ΔE 0.055
- Peacock Blue #016795 ΔE 0.057
- Light Navy Blue #2E5A88 ΔE 0.058
- Denim #3B638C ΔE 0.060
Use #305CAC 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.