#2D53D0
Closest named color: Warm Blue (#4B57DB). oklch(49.5% 0.198 266.1), rgb(45, 83, 208).
Aa
White text reads best on this color (6.44:1).
About this color
#2D53D0 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.198 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.040 away. White text reads best on it, at 6.44:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.198) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.25:1 |
| White text | 6.44:1 |
Values
| HEX | #2D53D0 |
| RGB | rgb(45, 83, 208) |
| HSL | hsl(226, 64%, 50%) |
| OKLCH | oklch(49.5% 0.198 266.1) |
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 #2D53D0 | 6.44:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #2D53D0 | 3.25:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #2D53D0 text on white | 6.44:1 | AA | Lc 81.3 | Fine for body text |
| #2D53D0 text on black | 3.25:1 | AA large text | Lc -20.5 | 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
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C9D9FD
oklch(88.5% 0.053 266.4)
-
Step 300
300
#A4C0FF
oklch(81% 0.095 265.8)
-
Step 400
400
#749CFF
oklch(70.8% 0.152 266)
-
Step 500
500
#527FFE
oklch(63.2% 0.195 266.2)
-
Step 600
600
#3964ED
oklch(55.6% 0.212 266.2)
-
Step 700
700 (this color)
#2D53D0
oklch(49.5% 0.198 266.1)
-
Step 800
800
#2544A7
oklch(42.8% 0.163 266.2)
-
Step 900
900
#213B84
oklch(37.8% 0.127 265.8)
-
Step 950
950
#14234D
oklch(27% 0.08 266.3)
#2D53D0 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) | #0066D4 | 0.046 |
| Deuteranopia (no green cones) | #0057CE | 0.022 |
| Tritanopia (no blue cones) | #007389 | 0.155 |
| Achromatopsia (no color) | #5E5E5E | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D53D0
#2D53D0
oklch(49.5% 0.198 266.1)
- #7B5D00
#7B5D00
oklch(49.5% 0.101 86.6)
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 #2D53D0, closest first.
No curated palette has a color within ΔE 0.04 of #2D53D0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.040
- Blue Blue #2242C7 ΔE 0.044
- Azul #1D5DEC ΔE 0.048
- Majorelle Blue #3F37C9 ΔE 0.059
- Neon Blue #4361EE ΔE 0.063
- Blue With A Hint Of Purple #533CC6 ΔE 0.064
- Royal Blue #4169E1 ΔE 0.065
- Blurple #5539CC ΔE 0.067
Use #2D53D0 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.