#304196
Closest named color: Cobalt (#1E488F). oklch(41.3% 0.14 270.5), rgb(48, 65, 150).
Aa
White text reads best on this color (9.04:1).
About this color
#304196 is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.140 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.027 away. White text reads best on it, at 9.04:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.32:1 |
| White text | 9.04:1 |
Values
| HEX | #304196 |
| RGB | rgb(48, 65, 150) |
| HSL | hsl(230, 52%, 39%) |
| OKLCH | oklch(41.3% 0.14 270.5) |
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 #304196 | 9.04:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #304196 | 2.32:1 | Fails | Lc 13.6 | Not readable |
| #304196 text on white | 9.04:1 | AAA | Lc 90.4 | Preferred for body text |
| #304196 text on black | 2.32:1 | Fails | Lc -11.9 | Not readable |
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 800.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CDD8F8
oklch(88.4% 0.046 270.4)
-
Step 300
300
#ACBEF7
oklch(80.8% 0.083 270.9)
-
Step 400
400
#829BF2
oklch(70.7% 0.131 270.6)
-
Step 500
500
#647FEE
oklch(63% 0.169 270.6)
-
Step 600
600
#4D66DC
oklch(55.6% 0.182 270.4)
-
Step 700
700
#3F54BF
oklch(49.2% 0.169 270.6)
-
Step 800
800 (this color)
#304196
oklch(41.3% 0.14 270.5)
-
Step 900
900
#2C3B7B
oklch(37.7% 0.11 270.4)
-
Step 950
950
#1A2348
oklch(27% 0.07 270.8)
#304196 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) | #004E99 | 0.042 |
| Deuteranopia (no green cones) | #004494 | 0.035 |
| Tritanopia (no blue cones) | #005565 | 0.114 |
| Achromatopsia (no color) | #494949 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #304196
#304196
oklch(41.3% 0.14 270.5)
- #5D4800
#5D4800
oklch(41.2% 0.084 89.5)
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 #304196, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.027
- Blueberry #464196 ΔE 0.031
- Dark Slate Blue #483D8B ΔE 0.039
- Sapphire #2138AB ΔE 0.045
- Dusk Blue #26538D ΔE 0.053
- Light Navy #155084 ΔE 0.057
- Twilight Blue #0A437A ΔE 0.059
- Twilight #4E518B ΔE 0.069
Use #304196 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.