#284261
Closest named color: Dark Grey Blue (#29465B). oklch(37.3% 0.063 253.6), rgb(40, 66, 97).
Aa
White text reads best on this color (10.28:1).
About this color
#284261 is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.063 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.019 away. White text reads best on it, at 10.28:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.04:1 |
| White text | 10.28:1 |
Values
| HEX | #284261 |
| RGB | rgb(40, 66, 97) |
| HSL | hsl(213, 42%, 27%) |
| OKLCH | oklch(37.3% 0.063 253.6) |
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 #284261 | 10.28:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #284261 | 2.04:1 | Fails | Lc 10.2 | Not readable |
| #284261 text on white | 10.28:1 | AAA | Lc 93.8 | Preferred for body text |
| #284261 text on black | 2.04:1 | Fails | Lc -8.8 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CEDBEA
oklch(88.6% 0.025 251.9)
-
Step 300
300
#ACC3DF
oklch(80.9% 0.047 253.5)
-
Step 400
400
#80A4CF
oklch(70.8% 0.075 253.2)
-
Step 500
500
#5F8CC2
oklch(63% 0.096 253.7)
-
Step 600
600
#4576AF
oklch(55.7% 0.104 253.3)
-
Step 700
700
#366396
oklch(49.2% 0.096 252.9)
-
Step 800
800
#2E517A
oklch(42.8% 0.08 253.5)
-
Step 900
900 (this color)
#284261
oklch(37.3% 0.063 253.6)
-
Step 950
950
#182739
oklch(26.8% 0.04 253.6)
#284261 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) | #354462 | 0.019 |
| Deuteranopia (no green cones) | #2E3E60 | 0.013 |
| Tritanopia (no blue cones) | #04494D | 0.055 |
| Achromatopsia (no color) | #414141 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #284261
#284261
oklch(37.3% 0.063 253.6)
- #543B17
#543B17
oklch(37.3% 0.062 73.7)
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 #284261, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.019
- Charcoal #264653 ΔE 0.031
- Dark Blue Grey #1F3B4D ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.046
- Twilight Blue #0A437A ΔE 0.047
- Marine Blue #01386A ΔE 0.052
- Midnight Green #073B4C ΔE 0.053
- Onyx #343A40 ΔE 0.057
Use #284261 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.