#284960
Closest named color: Dark Grey Blue (#29465B). oklch(39.1% 0.055 240.6), rgb(40, 73, 96).
Aa
White text reads best on this color (9.49:1).
About this color
#284960 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.055 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.011 away. White text reads best on it, at 9.49:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.21:1 |
| White text | 9.49:1 |
Values
| HEX | #284960 |
| RGB | rgb(40, 73, 96) |
| HSL | hsl(205, 41%, 27%) |
| OKLCH | oklch(39.1% 0.055 240.6) |
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 #284960 | 9.49:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #284960 | 2.21:1 | Fails | Lc 12.1 | Not readable |
| #284960 text on white | 9.49:1 | AAA | Lc 91.8 | Preferred for body text |
| #284960 text on black | 2.21:1 | Fails | Lc -10.5 | 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
#CCDCE7
oklch(88.6% 0.023 237.7)
-
Step 300
300
#AAC5D9
oklch(81% 0.041 240.1)
-
Step 400
400
#7BA7C6
oklch(70.8% 0.066 239.6)
-
Step 500
500
#5890B8
oklch(63.1% 0.085 241)
-
Step 600
600
#3B7AA4
oklch(55.6% 0.092 240.4)
-
Step 700
700
#2D668C
oklch(49% 0.085 240.8)
-
Step 800
800
#265472
oklch(42.8% 0.071 239.9)
-
Step 900
900 (this color)
#284960
oklch(39.1% 0.055 240.6)
-
Step 950
950
#162936
oklch(27.1% 0.035 239.7)
#284960 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) | #3F4961 | 0.030 |
| Deuteranopia (no green cones) | #374360 | 0.025 |
| Tritanopia (no blue cones) | #024F51 | 0.045 |
| Achromatopsia (no color) | #464646 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #284960
#284960
oklch(39.1% 0.055 240.6)
- #5B3E25
#5B3E25
oklch(39.1% 0.056 60.9)
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 #284960, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.011
- Charcoal #264653 ΔE 0.023
- Dark Slate Gray #2F4F4F ΔE 0.041
- Dark Teal #014D4E ΔE 0.047
- Deep Teal #00555A ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.053
- Charcoal Grey #3C4142 ΔE 0.053
- Twilight Blue #0A437A ΔE 0.057
Use #284960 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.