#2E45B5
Closest named color: Blue Blue (#2242C7). oklch(44.6% 0.179 268.9), rgb(46, 69, 181).
Aa
White text reads best on this color (7.97:1).
About this color
#2E45B5 is a dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.179 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.031 away. White text reads best on it, at 7.97:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | vivid (0.179) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.63:1 |
| White text | 7.97:1 |
Values
| HEX | #2E45B5 |
| RGB | rgb(46, 69, 181) |
| HSL | hsl(230, 59%, 45%) |
| OKLCH | oklch(44.6% 0.179 268.9) |
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 #2E45B5 | 7.97:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #2E45B5 | 2.63:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #2E45B5 text on white | 7.97:1 | AAA | Lc 87.0 | Fine for body text |
| #2E45B5 text on black | 2.63:1 | Fails | Lc -15.1 | 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 800.
-
Step 50
50
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E1EAFF
oklch(93.7% 0.03 267.2)
-
Step 200
200
#CAD8FF
oklch(88.4% 0.056 269.7)
-
Step 300
300
#A7BEFF
oklch(80.8% 0.096 269.2)
-
Step 400
400
#7A9AFF
oklch(70.7% 0.152 269)
-
Step 500
500
#5A7CFF
oklch(63% 0.198 269.1)
-
Step 600
600
#405DF8
oklch(55.6% 0.232 269)
-
Step 700
700
#334BD8
oklch(49.1% 0.216 269)
-
Step 800
800 (this color)
#2E45B5
oklch(44.6% 0.179 268.9)
-
Step 900
900
#25378A
oklch(37.6% 0.14 269.2)
-
Step 950
950
#152151
oklch(26.9% 0.089 269)
#2E45B5 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) | #0057B9 | 0.046 |
| Deuteranopia (no green cones) | #004BB3 | 0.029 |
| Tritanopia (no blue cones) | #006276 | 0.142 |
| Achromatopsia (no color) | #515151 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E45B5
#2E45B5
oklch(44.6% 0.179 268.9)
- #695100
#695100
oklch(44.7% 0.091 88.8)
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 #2E45B5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.031
- Sapphire #2138AB ΔE 0.039
- Majorelle Blue #3F37C9 ΔE 0.044
- Blue With A Hint Of Purple #533CC6 ΔE 0.058
- Blueberry #464196 ΔE 0.058
- Cobalt #1E488F ΔE 0.065
- Blurple #5539CC ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.077
Use #2E45B5 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.