#284963
Closest named color: Dark Grey Blue (#29465B). oklch(39.2% 0.059 243.9), rgb(40, 73, 99).
Aa
White text reads best on this color (9.44:1).
About this color
#284963 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.059 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.015 away. White text reads best on it, at 9.44:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.22:1 |
| White text | 9.44:1 |
Values
| HEX | #284963 |
| RGB | rgb(40, 73, 99) |
| HSL | hsl(206, 42%, 27%) |
| OKLCH | oklch(39.2% 0.059 243.9) |
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 #284963 | 9.44:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #284963 | 2.22:1 | Fails | Lc 12.2 | Not readable |
| #284963 text on white | 9.44:1 | AAA | Lc 91.7 | Preferred for body text |
| #284963 text on black | 2.22:1 | Fails | Lc -10.7 | 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
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#A9C4DC
oklch(80.8% 0.045 245.2)
-
Step 400
400
#7AA6CA
oklch(70.7% 0.071 243.7)
-
Step 500
500
#578FBC
oklch(63% 0.09 244.2)
-
Step 600
600
#3A79A8
oklch(55.6% 0.098 243.5)
-
Step 700
700
#2C6691
oklch(49.2% 0.092 243.7)
-
Step 800
800
#265375
oklch(42.7% 0.075 243.8)
-
Step 900
900 (this color)
#284963
oklch(39.2% 0.059 243.9)
-
Step 950
950
#162837
oklch(26.9% 0.037 244.9)
#284963 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) | #3E4964 | 0.028 |
| Deuteranopia (no green cones) | #364363 | 0.024 |
| Tritanopia (no blue cones) | #004F52 | 0.048 |
| Achromatopsia (no color) | #464646 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #284963
#284963
oklch(39.2% 0.059 243.9)
- #5C3F22
#5C3F22
oklch(39.4% 0.059 64.6)
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 #284963, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.015
- Charcoal #264653 ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.045
- Deep Teal #00555A ΔE 0.050
- Dark Teal #014D4E ΔE 0.051
- Twilight Blue #0A437A ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.055
- Light Navy #155084 ΔE 0.055
Use #284963 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.