#284872
Closest named color: Twilight Blue (#0A437A). oklch(39.8% 0.081 255.8), rgb(40, 72, 114).
Aa
White text reads best on this color (9.29:1).
About this color
#284872 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.081 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.033 away. White text reads best on it, at 9.29:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.26:1 |
| White text | 9.29:1 |
Values
| HEX | #284872 |
| RGB | rgb(40, 72, 114) |
| HSL | hsl(214, 48%, 30%) |
| OKLCH | oklch(39.8% 0.081 255.8) |
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 #284872 | 9.29:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #284872 | 2.26:1 | Fails | Lc 12.7 | Not readable |
| #284872 text on white | 9.29:1 | AAA | Lc 91.3 | Preferred for body text |
| #284872 text on black | 2.26:1 | Fails | Lc -11.1 | 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 900.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CBDBF0
oklch(88.6% 0.034 255.2)
-
Step 300
300
#A7C3E8
oklch(80.9% 0.061 255.5)
-
Step 400
400
#78A3DD
oklch(70.7% 0.098 256.1)
-
Step 500
500
#548BD3
oklch(63.1% 0.124 255.8)
-
Step 600
600
#3874C0
oklch(55.7% 0.134 255.6)
-
Step 700
700
#2A61A6
oklch(49.2% 0.125 255.6)
-
Step 800
800
#244F86
oklch(42.6% 0.103 255.8)
-
Step 900
900 (this color)
#284872
oklch(39.8% 0.081 255.8)
-
Step 950
950
#15273F
oklch(27% 0.051 256.1)
#284872 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) | #364B74 | 0.020 |
| Deuteranopia (no green cones) | #2C4471 | 0.012 |
| Tritanopia (no blue cones) | #005257 | 0.068 |
| Achromatopsia (no color) | #474747 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #284872
#284872
oklch(39.8% 0.081 255.8)
- #604005
#604005
oklch(39.8% 0.081 75.6)
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 #284872, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.033
- Light Navy #155084 ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.042
- Cobalt #1E488F ΔE 0.049
- Dusk Blue #26538D ΔE 0.051
- Charcoal #264653 ΔE 0.053
- Light Navy Blue #2E5A88 ΔE 0.061
Use #284872 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.