#284895
Closest named color: Cobalt (#1E488F). oklch(42.3% 0.132 264.4), rgb(40, 72, 149).
Aa
White text reads best on this color (8.56:1).
About this color
#284895 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.132 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.014 away. White text reads best on it, at 8.56:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.45:1 |
| White text | 8.56:1 |
Values
| HEX | #284895 |
| RGB | rgb(40, 72, 149) |
| HSL | hsl(222, 58%, 37%) |
| OKLCH | oklch(42.3% 0.132 264.4) |
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 #284895 | 8.56:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #284895 | 2.45:1 | Fails | Lc 14.9 | Not readable |
| #284895 text on white | 8.56:1 | AAA | Lc 89.1 | Fine for body text |
| #284895 text on black | 2.45:1 | Fails | Lc -13.1 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CBD9F6
oklch(88.4% 0.043 265)
-
Step 300
300
#A8C1F3
oklch(81% 0.076 264)
-
Step 400
400
#7A9FEE
oklch(70.8% 0.123 264.4)
-
Step 500
500
#5884E8
oklch(63% 0.158 264.4)
-
Step 600
600
#3F6BD6
oklch(55.5% 0.172 264.6)
-
Step 700
700
#3159BA
oklch(49.1% 0.16 264.4)
-
Step 800
800 (this color)
#284895
oklch(42.3% 0.132 264.4)
-
Step 900
900
#253E78
oklch(37.7% 0.104 264.4)
-
Step 950
950
#162546
oklch(27.1% 0.065 264.1)
#284895 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) | #195198 | 0.025 |
| Deuteranopia (no green cones) | #004793 | 0.026 |
| Tritanopia (no blue cones) | #005A67 | 0.106 |
| Achromatopsia (no color) | #4C4C4C | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #284895
#284895
oklch(42.3% 0.132 264.4)
- #644900
#644900
oklch(42.3% 0.087 84.2)
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 #284895, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.014
- Dusk Blue #26538D ΔE 0.035
- Blueberry #464196 ΔE 0.041
- Light Navy #155084 ΔE 0.041
- Dark Slate Blue #483D8B ΔE 0.049
- Deep Sea Blue #015482 ΔE 0.054
- Twilight Blue #0A437A ΔE 0.054
- Sapphire #2138AB ΔE 0.055
Use #284895 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.