#2851A4
Closest named color: Dusk Blue (#26538D). oklch(45.4% 0.142 262.4), rgb(40, 81, 164).
Aa
White text reads best on this color (7.49:1).
About this color
#2851A4 is a medium-dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.142 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.039 away. White text reads best on it, at 7.49:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #2851A4 |
| RGB | rgb(40, 81, 164) |
| HSL | hsl(220, 61%, 40%) |
| OKLCH | oklch(45.4% 0.142 262.4) |
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 #2851A4 | 7.49:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #2851A4 | 2.80:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #2851A4 text on white | 7.49:1 | AAA | Lc 85.6 | Fine for body text |
| #2851A4 text on black | 2.80:1 | Fails | Lc -16.4 | Dividers and decoration only |
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 800.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C9DAF9
oklch(88.5% 0.047 262.5)
-
Step 300
300
#A4C1F7
oklch(80.9% 0.083 262.6)
-
Step 400
400
#739FF3
oklch(70.7% 0.133 262.5)
-
Step 500
500
#4F84EF
oklch(63% 0.171 262.7)
-
Step 600
600
#336BDD
oklch(55.5% 0.184 262.4)
-
Step 700
700
#2659C0
oklch(49.2% 0.171 262.3)
-
Step 800
800 (this color)
#2851A4
oklch(45.4% 0.142 262.4)
-
Step 900
900
#1F3E7B
oklch(37.6% 0.11 262.2)
-
Step 950
950
#132548
oklch(27% 0.069 262.3)
#2851A4 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) | #1F5BA7 | 0.027 |
| Deuteranopia (no green cones) | #004FA2 | 0.024 |
| Tritanopia (no blue cones) | #006572 | 0.113 |
| Achromatopsia (no color) | #555555 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2851A4
#2851A4
oklch(45.4% 0.142 262.4)
- #705000
#705000
oklch(45.4% 0.094 81.9)
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 #2851A4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.039
- Cobalt #1E488F ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.049
- Blueberry #464196 ΔE 0.053
- Light Navy #155084 ΔE 0.056
- Light Navy Blue #2E5A88 ΔE 0.057
- Twilight #4E518B ΔE 0.060
- Deep Sea Blue #015482 ΔE 0.063
Use #2851A4 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.