#4583CA
Closest named color: Water Blue (#0E87CC). oklch(60.2% 0.126 253.3), rgb(69, 131, 202).
Aa
Black text reads best on this color (5.35:1).
About this color
#4583CA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.126 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.029 away. Black text reads best on it, at 5.35:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.35:1 |
| White text | 3.92:1 |
Values
| HEX | #4583CA |
| RGB | rgb(69, 131, 202) |
| HSL | hsl(212, 56%, 53%) |
| OKLCH | oklch(60.2% 0.126 253.3) |
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 #4583CA | 3.92:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #4583CA | 5.35:1 | AA | Lc 37.7 | Non-text elements, placeholder text |
| #4583CA text on white | 3.92:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #4583CA text on black | 5.35:1 | AA | Lc -35.3 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CADBF0
oklch(88.5% 0.034 253.7)
-
Step 300
300
#A5C4E8
oklch(81% 0.061 252.4)
-
Step 400
400
#74A4DD
oklch(70.7% 0.099 253.3)
-
Step 500
500 (this color)
#4583CA
oklch(60.2% 0.126 253.3)
-
Step 600
600
#2F75C1
oklch(55.7% 0.137 253.1)
-
Step 700
700
#2162A7
oklch(49.2% 0.128 253.1)
-
Step 800
800
#1E5087
oklch(42.7% 0.106 253.3)
-
Step 900
900
#1E436C
oklch(37.7% 0.082 252.9)
-
Step 950
950
#13273F
oklch(26.9% 0.052 254)
#4583CA 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) | #6487CD | 0.036 |
| Deuteranopia (no green cones) | #517BC9 | 0.023 |
| Tritanopia (no blue cones) | #00939D | 0.099 |
| Achromatopsia (no color) | #808080 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4583CA
#4583CA
oklch(60.2% 0.126 253.3)
- #AD7306
#AD7306
oklch(60.2% 0.126 73.7)
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 #4583CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.029
- Cool Blue #4984B8 ΔE 0.029
- Steel Blue #4682B4 ΔE 0.034
- Windows Blue #3778BF ΔE 0.037
- Dark Sky Blue #448EE4 ΔE 0.045
- Off Blue #5684AE ΔE 0.046
- Dusty Blue #5A86AD ΔE 0.051
- Faded Blue #658CBB ΔE 0.052
Use #4583CA 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.