#618ADE
Closest named color: Soft Blue (#6488EA). oklch(64.2% 0.135 263.4), rgb(97, 138, 222).
Aa
Black text reads best on this color (6.19:1).
About this color
#618ADE is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.135 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.020 away. Black text reads best on it, at 6.19:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.19:1 |
| White text | 3.38:1 |
Values
| HEX | #618ADE |
| RGB | rgb(97, 138, 222) |
| HSL | hsl(220, 65%, 63%) |
| OKLCH | oklch(64.2% 0.135 263.4) |
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 #618ADE | 3.38:1 | AA large text | Lc -66.6 | Content text, not long reading |
| Black text on #618ADE | 6.19:1 | AA | Lc 42.9 | Non-text elements, placeholder text |
| #618ADE text on white | 3.38:1 | AA large text | Lc 61.2 | Content text, not long reading |
| #618ADE text on black | 6.19:1 | AA | Lc -40.5 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CDDAF2
oklch(88.6% 0.036 262.8)
-
Step 300
300
#ABC1EC
oklch(80.9% 0.066 263.7)
-
Step 400
400
#7EA0E3
oklch(70.7% 0.106 263.3)
-
Step 500
500 (this color)
#618ADE
oklch(64.2% 0.135 263.4)
-
Step 600
600
#456FC8
oklch(55.7% 0.146 263.4)
-
Step 700
700
#365CAD
oklch(49% 0.137 263.3)
-
Step 800
800
#2D4C8C
oklch(42.8% 0.112 263)
-
Step 900
900
#284070
oklch(37.8% 0.088 262.8)
-
Step 950
950
#182641
oklch(27.1% 0.054 262.5)
#618ADE 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) | #6792E1 | 0.023 |
| Deuteranopia (no green cones) | #5786DC | 0.016 |
| Tritanopia (no blue cones) | #009DA9 | 0.122 |
| Achromatopsia (no color) | #8B8B8B | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #618ADE
#618ADE
oklch(64.2% 0.135 263.4)
- #B38400
#B38400
oklch(64.2% 0.132 83.3)
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 #618ADE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.020
- Dark Sky Blue #448EE4 ΔE 0.027
- Cornflower Blue #6495ED ΔE 0.034
- Chefchaouen Blue #4895EF ΔE 0.038
- Faded Blue #658CBB ΔE 0.055
- Perrywinkle #8F8CE7 ΔE 0.062
- Cornflower #6A79F7 ΔE 0.062
- Dodger Blue #1E90FF ΔE 0.063
Use #618ADE 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.