#2845A5
Closest named color: Sapphire (#2138AB). oklch(42.9% 0.159 266.7), rgb(40, 69, 165).
Aa
White text reads best on this color (8.45:1).
About this color
#2845A5 is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.159 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.034 away. White text reads best on it, at 8.45:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.159) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.48:1 |
| White text | 8.45:1 |
Values
| HEX | #2845A5 |
| RGB | rgb(40, 69, 165) |
| HSL | hsl(226, 61%, 40%) |
| OKLCH | oklch(42.9% 0.159 266.7) |
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 #2845A5 | 8.45:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #2845A5 | 2.48:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #2845A5 text on white | 8.45:1 | AAA | Lc 88.6 | Fine for body text |
| #2845A5 text on black | 2.48:1 | Fails | Lc -13.6 | 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 800.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CAD9FC
oklch(88.5% 0.051 267)
-
Step 300
300
#A5BFFD
oklch(80.8% 0.093 266.7)
-
Step 400
400
#769CFD
oklch(70.8% 0.148 266.5)
-
Step 500
500
#557FFB
oklch(63.1% 0.19 266.8)
-
Step 600
600
#3C65EA
oklch(55.7% 0.206 266.5)
-
Step 700
700
#2F52CB
oklch(49% 0.192 266.7)
-
Step 800
800 (this color)
#2845A5
oklch(42.9% 0.159 266.7)
-
Step 900
900
#243B82
oklch(37.7% 0.123 266.8)
-
Step 950
950
#15234C
oklch(27% 0.078 266.9)
#2845A5 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) | #0053A8 | 0.038 |
| Deuteranopia (no green cones) | #0047A3 | 0.024 |
| Tritanopia (no blue cones) | #005D6E | 0.126 |
| Achromatopsia (no color) | #4D4D4D | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2845A5
#2845A5
oklch(42.9% 0.159 266.7)
- #644B00
#644B00
oklch(42.8% 0.087 86.6)
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 #2845A5, closest first.
No curated palette has a color within ΔE 0.04 of #2845A5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.034
- Cobalt #1E488F ΔE 0.039
- Blueberry #464196 ΔE 0.045
- Blue Blue #2242C7 ΔE 0.055
- Dusk Blue #26538D ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.060
- Light Navy #155084 ΔE 0.066
- Majorelle Blue #3F37C9 ΔE 0.068
Use #2845A5 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.