#2859AC
Closest named color: Denim Blue (#3B5B92). oklch(47.7% 0.143 260.3), rgb(40, 89, 172).
Aa
White text reads best on this color (6.74:1).
About this color
#2859AC is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.143 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.046 away. White text reads best on it, at 6.74:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.11:1 |
| White text | 6.74:1 |
Values
| HEX | #2859AC |
| RGB | rgb(40, 89, 172) |
| HSL | hsl(218, 62%, 42%) |
| OKLCH | oklch(47.7% 0.143 260.3) |
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 #2859AC | 6.74:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #2859AC | 3.11:1 | AA large text | Lc 21.2 | Dividers and decoration only |
| #2859AC text on white | 6.74:1 | AA | Lc 82.8 | Fine for body text |
| #2859AC text on black | 3.11:1 | AA large text | Lc -19.1 | 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 700.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CBDAF3
oklch(88.5% 0.038 260.7)
-
Step 300
300
#A7C2EE
oklch(80.9% 0.069 260.1)
-
Step 400
400
#78A1E6
oklch(70.7% 0.111 260.5)
-
Step 500
500
#5588DE
oklch(63.1% 0.141 260.3)
-
Step 600
600
#3A70CC
oklch(55.6% 0.154 260.3)
-
Step 700
700 (this color)
#2859AC
oklch(47.7% 0.143 260.3)
-
Step 800
800
#254C8F
oklch(42.6% 0.12 260.4)
-
Step 900
900
#234072
oklch(37.6% 0.093 260.6)
-
Step 950
950
#152643
oklch(27% 0.059 260.5)
#2859AC 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) | #2B62AF | 0.025 |
| Deuteranopia (no green cones) | #0056AA | 0.023 |
| Tritanopia (no blue cones) | #006D7A | 0.112 |
| Achromatopsia (no color) | #5B5B5B | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2859AC
#2859AC
oklch(47.7% 0.143 260.3)
- #795500
#795500
oklch(47.6% 0.098 80.2)
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 #2859AC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.046
- Mid Blue #276AB3 ΔE 0.047
- Dusk Blue #26538D ΔE 0.051
- Dusky Blue #475F94 ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.059
- French Blue #436BAD ΔE 0.060
- Peacock Blue #016795 ΔE 0.061
- Cobalt #1E488F ΔE 0.065
Use #2859AC 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.