#53AAFD
Closest named color: Cornflower Blue (#6495ED). oklch(72.1% 0.148 249.7), rgb(83, 170, 253).
Aa
Black text reads best on this color (8.53:1).
About this color
#53AAFD is a medium-light, vivid blue. In OKLCH its lightness is 72%, its chroma 0.148 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.055 away. Black text reads best on it, at 8.53:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.53:1 |
| White text | 2.46:1 |
Values
| HEX | #53AAFD |
| RGB | rgb(83, 170, 253) |
| HSL | hsl(209, 98%, 66%) |
| OKLCH | oklch(72.1% 0.148 249.7) |
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 #53AAFD | 2.46:1 | Fails | Lc -53.1 | Large or bold text, headings |
| Black text on #53AAFD | 8.53:1 | AAA | Lc 55.9 | Large or bold text, headings |
| #53AAFD text on white | 2.46:1 | Fails | Lc 48.1 | Large or bold text, headings |
| #53AAFD text on black | 8.53:1 | AAA | Lc -53.9 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF6FE
oklch(97% 0.013 251.6)
-
Step 100
100
#DDECFC
oklch(93.7% 0.027 249.9)
-
Step 200
200
#C0DDFA
oklch(88.6% 0.051 248.4)
-
Step 300
300
#92C6FA
oklch(80.9% 0.092 249)
-
Step 400
400 (this color)
#53AAFD
oklch(72.1% 0.148 249.7)
-
Step 500
500
#008CEF
oklch(63% 0.178 249.9)
-
Step 600
600
#0076CA
oklch(55.7% 0.156 249.7)
-
Step 700
700
#0063AB
oklch(49.2% 0.138 249.7)
-
Step 800
800
#00518D
oklch(42.7% 0.12 249.5)
-
Step 900
900
#004377
oklch(37.7% 0.106 249.9)
-
Step 950
950
#002749
oklch(26.8% 0.076 249.9)
#53AAFD 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) | #85AEFF | 0.051 |
| Deuteranopia (no green cones) | #6D9EFB | 0.036 |
| Tritanopia (no blue cones) | #00BEC8 | 0.113 |
| Achromatopsia (no color) | #A5A5A5 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #53AAFD
#53AAFD
oklch(72.1% 0.148 249.7)
- #DF9221
#DF9221
oklch(72.1% 0.148 69.8)
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 #53AAFD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.055
- Deep Sky Blue #00BFFF ΔE 0.059
- Chefchaouen Blue #4895EF ΔE 0.059
- Carolina Blue #8AB8FE ΔE 0.069
- Periwinkle Blue #8F99FB ΔE 0.071
- Dark Sky Blue #448EE4 ΔE 0.081
- Dodger Blue #1E90FF ΔE 0.082
- Soft Blue #6488EA ΔE 0.088
Use #53AAFD 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.