#304492
Closest named color: Cobalt (#1E488F). oklch(41.6% 0.131 269.2), rgb(48, 68, 146).
Aa
White text reads best on this color (8.86:1).
About this color
#304492 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.131 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.021 away. White text reads best on it, at 8.86:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.36:1 |
| White text | 8.86:1 |
Values
| HEX | #304492 |
| RGB | rgb(48, 68, 146) |
| HSL | hsl(228, 51%, 38%) |
| OKLCH | oklch(41.6% 0.131 269.2) |
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 #304492 | 8.86:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #304492 | 2.36:1 | Fails | Lc 14.0 | Not readable |
| #304492 text on white | 8.86:1 | AAA | Lc 90.0 | Fine for body text |
| #304492 text on black | 2.36:1 | Fails | Lc -12.3 | 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
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED9F6
oklch(88.6% 0.042 269)
-
Step 300
300
#ACBFF3
oklch(80.8% 0.077 269)
-
Step 400
400
#829CED
oklch(70.6% 0.123 269.6)
-
Step 500
500
#6482E7
oklch(63.2% 0.155 269.2)
-
Step 600
600
#4C69D5
oklch(55.7% 0.169 269)
-
Step 700
700
#3E56B9
oklch(49.1% 0.158 269.5)
-
Step 800
800 (this color)
#304492
oklch(41.6% 0.131 269.2)
-
Step 900
900
#2C3D77
oklch(37.8% 0.101 268.9)
-
Step 950
950
#1A2446
oklch(27.1% 0.065 269.4)
#304492 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) | #134F95 | 0.035 |
| Deuteranopia (no green cones) | #004690 | 0.034 |
| Tritanopia (no blue cones) | #005664 | 0.108 |
| Achromatopsia (no color) | #4A4A4A | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #304492
#304492
oklch(41.6% 0.131 269.2)
- #5E4900
#5E4900
oklch(41.6% 0.085 89.8)
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 #304492, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.021
- Blueberry #464196 ΔE 0.032
- Dark Slate Blue #483D8B ΔE 0.038
- Dusk Blue #26538D ΔE 0.044
- Light Navy #155084 ΔE 0.048
- Twilight Blue #0A437A ΔE 0.054
- Sapphire #2138AB ΔE 0.055
- Twilight #4E518B ΔE 0.061
Use #304492 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.