#2259AA
Closest named color: Denim Blue (#3B5B92). oklch(47.4% 0.142 258.5), rgb(34, 89, 170).
Aa
White text reads best on this color (6.82:1).
About this color
#2259AA is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.142 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.045 away. White text reads best on it, at 6.82:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.07:1 |
| White text | 6.82:1 |
Values
| HEX | #2259AA |
| RGB | rgb(34, 89, 170) |
| HSL | hsl(216, 67%, 40%) |
| OKLCH | oklch(47.4% 0.142 258.5) |
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 #2259AA | 6.82:1 | AA | Lc -88.1 | Fine for body text |
| Black text on #2259AA | 3.07:1 | AA large text | Lc 20.9 | Dividers and decoration only |
| #2259AA text on white | 6.82:1 | AA | Lc 83.1 | Fine for body text |
| #2259AA text on black | 3.07:1 | AA large text | Lc -18.8 | 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
#E2EBF8
oklch(93.7% 0.02 257.5)
-
Step 200
200
#CADAF3
oklch(88.4% 0.039 259.3)
-
Step 300
300
#A6C2EE
oklch(80.9% 0.07 259.3)
-
Step 400
400
#75A2E5
oklch(70.7% 0.11 258.1)
-
Step 500
500
#5189DD
oklch(63.1% 0.14 258.3)
-
Step 600
600
#3571CB
oklch(55.6% 0.153 258.5)
-
Step 700
700 (this color)
#2259AA
oklch(47.4% 0.142 258.5)
-
Step 800
800
#224D8E
oklch(42.6% 0.118 258.6)
-
Step 900
900
#214171
oklch(37.7% 0.091 258.4)
-
Step 950
950
#142642
oklch(26.9% 0.058 258.9)
#2259AA 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) | #2C61AD | 0.025 |
| Deuteranopia (no green cones) | #0155A8 | 0.021 |
| Tritanopia (no blue cones) | #006C79 | 0.109 |
| Achromatopsia (no color) | #5B5B5B | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2259AA
#2259AA
oklch(47.4% 0.142 258.5)
- #7A5400
#7A5400
oklch(47.5% 0.099 78.4)
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 #2259AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.045
- Dusk Blue #26538D ΔE 0.048
- Mid Blue #276AB3 ΔE 0.049
- Dusky Blue #475F94 ΔE 0.056
- Light Navy Blue #2E5A88 ΔE 0.056
- Peacock Blue #016795 ΔE 0.058
- Cobalt #1E488F ΔE 0.062
- French Blue #436BAD ΔE 0.063
Use #2259AA 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.