#2A53B0
Closest named color: Blue Blue (#2242C7). oklch(46.8% 0.156 263.6), rgb(42, 83, 176).
Aa
White text reads best on this color (7.08:1).
About this color
#2A53B0 is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.156 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.056 away. White text reads best on it, at 7.08:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.96:1 |
| White text | 7.08:1 |
Values
| HEX | #2A53B0 |
| RGB | rgb(42, 83, 176) |
| HSL | hsl(222, 61%, 43%) |
| OKLCH | oklch(46.8% 0.156 263.6) |
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 #2A53B0 | 7.08:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #2A53B0 | 2.96:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #2A53B0 text on white | 7.08:1 | AAA | Lc 84.1 | Fine for body text |
| #2A53B0 text on black | 2.96:1 | Fails | Lc -17.8 | 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
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CBDAF6
oklch(88.6% 0.042 263)
-
Step 300
300
#A8C1F2
oklch(80.9% 0.075 263.7)
-
Step 400
400
#799FEC
oklch(70.7% 0.121 263.6)
-
Step 500
500
#5885E6
oklch(63.1% 0.154 263.8)
-
Step 600
600
#3E6DD4
oklch(55.7% 0.167 263.5)
-
Step 700
700 (this color)
#2A53B0
oklch(46.8% 0.156 263.6)
-
Step 800
800
#284A95
oklch(42.7% 0.13 263.5)
-
Step 900
900
#253F76
oklch(37.8% 0.099 263.4)
-
Step 950
950
#162545
oklch(27% 0.063 263.8)
#2A53B0 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) | #115FB3 | 0.032 |
| Deuteranopia (no green cones) | #0052AE | 0.023 |
| Tritanopia (no blue cones) | #006A79 | 0.124 |
| Achromatopsia (no color) | #585858 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A53B0
#2A53B0
oklch(46.8% 0.156 263.6)
- #745400
#745400
oklch(46.7% 0.096 83)
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 #2A53B0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.056
- Dusk Blue #26538D ΔE 0.057
- Denim Blue #3B5B92 ΔE 0.059
- Cobalt #1E488F ΔE 0.062
- Mid Blue #276AB3 ΔE 0.062
- Blueberry #464196 ΔE 0.064
- Sapphire #2138AB ΔE 0.068
- Dusky Blue #475F94 ΔE 0.069
Use #2A53B0 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.