#284069
Closest named color: Dark Grey Blue (#29465B). oklch(37.3% 0.077 260.5), rgb(40, 64, 105).
Aa
White text reads best on this color (10.35:1).
About this color
#284069 is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.077 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.035 away. White text reads best on it, at 10.35:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.02:1 |
| White text | 10.35:1 |
Values
| HEX | #284069 |
| RGB | rgb(40, 64, 105) |
| HSL | hsl(218, 45%, 28%) |
| OKLCH | oklch(37.3% 0.077 260.5) |
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 #284069 | 10.35:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #284069 | 2.02:1 | Fails | Lc 10.0 | Not readable |
| #284069 text on white | 10.35:1 | AAA | Lc 93.9 | Preferred for body text |
| #284069 text on black | 2.02:1 | Fails | Lc -8.6 | 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
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CDDAEF
oklch(88.5% 0.032 260)
-
Step 300
300
#ACC2E7
oklch(81% 0.058 260.8)
-
Step 400
400
#7FA1DA
oklch(70.6% 0.092 260.5)
-
Step 500
500
#5F89D0
oklch(63.1% 0.117 260.4)
-
Step 600
600
#4572BE
oklch(55.7% 0.129 260.3)
-
Step 700
700
#375FA4
oklch(49.2% 0.12 260.6)
-
Step 800
800
#2E4E84
oklch(42.7% 0.098 260.3)
-
Step 900
900 (this color)
#284069
oklch(37.3% 0.077 260.5)
-
Step 950
950
#18263E
oklch(26.9% 0.049 260.7)
#284069 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) | #2F436B | 0.014 |
| Deuteranopia (no green cones) | #263D68 | 0.010 |
| Tritanopia (no blue cones) | #00494F | 0.067 |
| Achromatopsia (no color) | #404040 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #284069
#284069
oklch(37.3% 0.077 260.5)
- #553B00
#553B00
oklch(37.2% 0.077 80.7)
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 #284069, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.035
- Twilight Blue #0A437A ΔE 0.035
- Marine Blue #01386A ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.047
- Charcoal #264653 ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.051
- Light Navy #155084 ΔE 0.059
- Midnight Green #073B4C ΔE 0.062
Use #284069 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.