#2F59AB
Closest named color: Denim Blue (#3B5B92). oklch(47.9% 0.14 262.1), rgb(47, 89, 171).
Aa
White text reads best on this color (6.69:1).
About this color
#2F59AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.140 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.043 away. White text reads best on it, at 6.69:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.140) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.13:1 |
| White text | 6.69:1 |
Values
| HEX | #2F59AB |
| RGB | rgb(47, 89, 171) |
| HSL | hsl(220, 57%, 43%) |
| OKLCH | oklch(47.9% 0.14 262.1) |
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 #2F59AB | 6.69:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #2F59AB | 3.13:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #2F59AB text on white | 6.69:1 | AA | Lc 82.7 | Fine for body text |
| #2F59AB text on black | 3.13:1 | 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
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CCDAF3
oklch(88.6% 0.038 262.1)
-
Step 300
300
#A9C1ED
oklch(80.8% 0.068 262.5)
-
Step 400
400
#7BA0E4
oklch(70.6% 0.108 262.1)
-
Step 500
500
#5A87DC
oklch(63% 0.138 262.1)
-
Step 600
600
#406FCA
oklch(55.6% 0.15 262.1)
-
Step 700
700 (this color)
#2F59AB
oklch(47.9% 0.14 262.1)
-
Step 800
800
#2A4C8E
oklch(42.7% 0.116 262.1)
-
Step 900
900
#264071
oklch(37.7% 0.09 261.9)
-
Step 950
950
#172642
oklch(27.1% 0.056 262)
#2F59AB 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) | #2D62AE | 0.024 |
| Deuteranopia (no green cones) | #0C57A9 | 0.024 |
| Tritanopia (no blue cones) | #006C7A | 0.110 |
| Achromatopsia (no color) | #5C5C5C | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F59AB
#2F59AB
oklch(47.9% 0.14 262.1)
- #795700
#795700
oklch(48% 0.099 82.2)
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 #2F59AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.043
- Mid Blue #276AB3 ΔE 0.046
- Dusky Blue #475F94 ΔE 0.051
- Dusk Blue #26538D ΔE 0.051
- French Blue #436BAD ΔE 0.057
- Light Navy Blue #2E5A88 ΔE 0.058
- Twilight #4E518B ΔE 0.061
- Peacock Blue #016795 ΔE 0.061
Use #2F59AB 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.