#597DEA
Closest named color: Cornflower (#6A79F7). oklch(61.8% 0.169 267.5), rgb(89, 125, 234).
Aa
Black text reads best on this color (5.54:1).
About this color
#597DEA is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.169 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.030 away. Black text reads best on it, at 5.54:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.54:1 |
| White text | 3.78:1 |
Values
| HEX | #597DEA |
| RGB | rgb(89, 125, 234) |
| HSL | hsl(225, 78%, 63%) |
| OKLCH | oklch(61.8% 0.169 267.5) |
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 #597DEA | 3.78:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #597DEA | 5.54:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #597DEA text on white | 3.78:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #597DEA text on black | 5.54:1 | AA | Lc -36.6 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CCD9F8
oklch(88.5% 0.045 267.4)
-
Step 300
300
#A9BFF7
oklch(80.8% 0.083 267.9)
-
Step 400
400
#7C9CF3
oklch(70.6% 0.133 267.6)
-
Step 500
500 (this color)
#597DEA
oklch(61.8% 0.169 267.5)
-
Step 600
600
#4568DD
oklch(55.7% 0.183 267.5)
-
Step 700
700
#3755C0
oklch(49% 0.171 267.7)
-
Step 800
800
#2D479B
oklch(42.8% 0.141 267.2)
-
Step 900
900
#283C7B
oklch(37.6% 0.11 267.6)
-
Step 950
950
#172448
oklch(27% 0.069 266.8)
#597DEA 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) | #478AEE | 0.034 |
| Deuteranopia (no green cones) | #2C7DE8 | 0.039 |
| Tritanopia (no blue cones) | #0096A8 | 0.144 |
| Achromatopsia (no color) | #838383 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #597DEA
#597DEA
oklch(61.8% 0.169 267.5)
- #A57F00
#A57F00
oklch(61.6% 0.126 87.5)
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 #597DEA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.030
- Soft Blue #6488EA ΔE 0.033
- Dark Sky Blue #448EE4 ΔE 0.048
- Clear Blue #247AFD ΔE 0.052
- Dodger Blue #1E90FF ΔE 0.060
- Royal Blue #4169E1 ΔE 0.061
- Chefchaouen Blue #4895EF ΔE 0.061
- Medium Slate Blue #7B68EE ΔE 0.063
Use #597DEA 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.