#304485
Closest named color: Cobalt (#1E488F). oklch(40.6% 0.111 268.3), rgb(48, 68, 133).
Aa
White text reads best on this color (9.16:1).
About this color
#304485 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.111 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.024 away. White text reads best on it, at 9.16:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.29:1 |
| White text | 9.16:1 |
Values
| HEX | #304485 |
| RGB | rgb(48, 68, 133) |
| HSL | hsl(226, 47%, 35%) |
| OKLCH | oklch(40.6% 0.111 268.3) |
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 #304485 | 9.16:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #304485 | 2.29:1 | Fails | Lc 13.1 | Not readable |
| #304485 text on white | 9.16:1 | AAA | Lc 90.9 | Preferred for body text |
| #304485 text on black | 2.29:1 | Fails | Lc -11.5 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CFD9F2
oklch(88.5% 0.036 268.3)
-
Step 300
300
#AFC0EC
oklch(81% 0.065 268.4)
-
Step 400
400
#859EE2
oklch(70.7% 0.104 268.2)
-
Step 500
500
#6784DA
oklch(63% 0.134 268.3)
-
Step 600
600
#506CC7
oklch(55.5% 0.145 268.5)
-
Step 700
700
#415AAC
oklch(49.1% 0.134 268.4)
-
Step 800
800 (this color)
#304485
oklch(40.6% 0.111 268.3)
-
Step 900
900
#2E3E6F
oklch(37.6% 0.086 268.4)
-
Step 950
950
#1B2541
oklch(27% 0.054 267.8)
#304485 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) | #244C87 | 0.024 |
| Deuteranopia (no green cones) | #144484 | 0.027 |
| Tritanopia (no blue cones) | #00535E | 0.095 |
| Achromatopsia (no color) | #484848 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #304485
#304485
oklch(40.6% 0.111 268.3)
- #5C4600
#5C4600
oklch(40.6% 0.083 88.1)
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 #304485, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.024
- Light Navy #155084 ΔE 0.039
- Twilight Blue #0A437A ΔE 0.039
- Dark Slate Blue #483D8B ΔE 0.040
- Dusk Blue #26538D ΔE 0.042
- Blueberry #464196 ΔE 0.043
- Deep Sea Blue #015482 ΔE 0.053
- Twilight #4E518B ΔE 0.060
Use #304485 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.