#284860
Closest named color: Dark Grey Blue (#29465B). oklch(38.8% 0.056 242.5), rgb(40, 72, 96).
Aa
White text reads best on this color (9.60:1).
About this color
#284860 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.056 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.009 away. White text reads best on it, at 9.60:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.18:1 |
| White text | 9.60:1 |
Values
| HEX | #284860 |
| RGB | rgb(40, 72, 96) |
| HSL | hsl(206, 41%, 27%) |
| OKLCH | oklch(38.8% 0.056 242.5) |
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 #284860 | 9.60:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #284860 | 2.18:1 | Fails | Lc 11.8 | Not readable |
| #284860 text on white | 9.60:1 | AAA | Lc 92.1 | Preferred for body text |
| #284860 text on black | 2.18:1 | Fails | Lc -10.3 | 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 900.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDBE8
oklch(88.4% 0.024 244.2)
-
Step 300
300
#AAC4DA
oklch(80.8% 0.042 243.8)
-
Step 400
400
#7CA6C7
oklch(70.7% 0.067 242.5)
-
Step 500
500
#5990B9
oklch(63.2% 0.085 242.1)
-
Step 600
600
#3D79A5
oklch(55.5% 0.093 242.7)
-
Step 700
700
#2E668E
oklch(49.1% 0.087 242.5)
-
Step 800
800
#285373
oklch(42.7% 0.072 243.1)
-
Step 900
900 (this color)
#284860
oklch(38.8% 0.056 242.5)
-
Step 950
950
#162836
oklch(26.8% 0.035 243.1)
#284860 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) | #3E4861 | 0.029 |
| Deuteranopia (no green cones) | #364260 | 0.024 |
| Tritanopia (no blue cones) | #024E50 | 0.047 |
| Achromatopsia (no color) | #454545 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #284860
#284860
oklch(38.8% 0.056 242.5)
- #5A3E24
#5A3E24
oklch(38.9% 0.056 62.9)
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 #284860, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.009
- Charcoal #264653 ΔE 0.023
- Dark Slate Gray #2F4F4F ΔE 0.043
- Dark Teal #014D4E ΔE 0.048
- Deep Teal #00555A ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.053
- Twilight Blue #0A437A ΔE 0.055
Use #284860 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.