#2B59AC
Closest named color: Denim Blue (#3B5B92). oklch(47.8% 0.142 261.1), rgb(43, 89, 172).
Aa
White text reads best on this color (6.71:1).
About this color
#2B59AC is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.142 and its hue 261°. 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 6.71:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.12:1 |
| White text | 6.71:1 |
Values
| HEX | #2B59AC |
| RGB | rgb(43, 89, 172) |
| HSL | hsl(219, 60%, 42%) |
| OKLCH | oklch(47.8% 0.142 261.1) |
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 #2B59AC | 6.71:1 | AA | Lc -87.8 | Fine for body text |
| Black text on #2B59AC | 3.12:1 | AA large text | Lc 21.3 | Dividers and decoration only |
| #2B59AC text on white | 6.71:1 | AA | Lc 82.7 | Fine for body text |
| #2B59AC text on black | 3.12:1 | AA large text | Lc -19.2 | 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
#A8C2EE
oklch(81% 0.069 260.9)
-
Step 400
400
#79A1E5
oklch(70.7% 0.11 260.7)
-
Step 500
500
#5788DE
oklch(63.2% 0.141 260.9)
-
Step 600
600
#3C6FCC
oklch(55.5% 0.154 261.3)
-
Step 700
700 (this color)
#2B59AC
oklch(47.8% 0.142 261.1)
-
Step 800
800
#274C8F
oklch(42.7% 0.119 261.2)
-
Step 900
900
#244072
oklch(37.7% 0.092 261.1)
-
Step 950
950
#162643
oklch(27.1% 0.058 261.5)
#2B59AC 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) | #0356AA | 0.025 |
| Tritanopia (no blue cones) | #006D7A | 0.113 |
| Achromatopsia (no color) | #5C5C5C | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B59AC
#2B59AC
oklch(47.8% 0.142 261.1)
- #795600
#795600
oklch(47.8% 0.099 81.2)
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 #2B59AC, 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 0.052
- Dusky Blue #475F94 ΔE 0.054
- French Blue #436BAD ΔE 0.059
- Light Navy Blue #2E5A88 ΔE 0.059
- Peacock Blue #016795 ΔE 0.061
- Twilight #4E518B ΔE 0.064
Use #2B59AC 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.