#618AE5
Closest named color: Soft Blue (#6488EA). oklch(64.6% 0.144 264.4), rgb(97, 138, 229).
Aa
Black text reads best on this color (6.27:1).
About this color
#618AE5 is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.144 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.010 away. Black text reads best on it, at 6.27:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.27:1 |
| White text | 3.34:1 |
Values
| HEX | #618AE5 |
| RGB | rgb(97, 138, 229) |
| HSL | hsl(221, 72%, 64%) |
| OKLCH | oklch(64.6% 0.144 264.4) |
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 #618AE5 | 3.34:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #618AE5 | 6.27:1 | AA | Lc 43.4 | Non-text elements, placeholder text |
| #618AE5 text on white | 3.34:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #618AE5 text on black | 6.27:1 | AA | Lc -41.0 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CCD9F4
oklch(88.4% 0.04 265.1)
-
Step 300
300
#AAC1EF
oklch(81% 0.07 264.1)
-
Step 400
400
#7D9FE7
oklch(70.7% 0.113 264.4)
-
Step 500
500 (this color)
#618AE5
oklch(64.6% 0.144 264.4)
-
Step 600
600
#446DCE
oklch(55.6% 0.157 264.6)
-
Step 700
700
#365BB2
oklch(49.2% 0.145 264.4)
-
Step 800
800
#2D4B90
oklch(42.8% 0.119 264.3)
-
Step 900
900
#283F73
oklch(37.7% 0.094 264.4)
-
Step 950
950
#182543
oklch(27% 0.059 265)
#618AE5 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) | #6393E9 | 0.024 |
| Deuteranopia (no green cones) | #5287E3 | 0.019 |
| Tritanopia (no blue cones) | #009EAC | 0.128 |
| Achromatopsia (no color) | #8C8C8C | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #618AE5
#618AE5
oklch(64.6% 0.144 264.4)
- #B38600
#B38600
oklch(64.6% 0.132 84.7)
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 #618AE5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.010
- Dark Sky Blue #448EE4 ΔE 0.028
- Cornflower Blue #6495ED ΔE 0.030
- Chefchaouen Blue #4895EF ΔE 0.034
- Cornflower #6A79F7 ΔE 0.054
- Dodger Blue #1E90FF ΔE 0.057
- Perrywinkle #8F8CE7 ΔE 0.060
- Lavender Blue #8B88F8 ΔE 0.061
Use #618AE5 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.