#618FCE
Closest named color: Faded Blue (#658CBB). oklch(64.4% 0.108 256.5), rgb(97, 143, 206).
Aa
Black text reads best on this color (6.32:1).
About this color
#618FCE is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.108 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.028 away. Black text reads best on it, at 6.32:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.32:1 |
| White text | 3.31:1 |
Values
| HEX | #618FCE |
| RGB | rgb(97, 143, 206) |
| HSL | hsl(215, 53%, 59%) |
| OKLCH | oklch(64.4% 0.108 256.5) |
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 #618FCE | 3.31:1 | AA large text | Lc -65.9 | Content text, not long reading |
| Black text on #618FCE | 6.32:1 | AA | Lc 43.6 | Non-text elements, placeholder text |
| #618FCE text on white | 3.31:1 | AA large text | Lc 60.4 | Content text, not long reading |
| #618FCE text on black | 6.32:1 | AA | Lc -41.3 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EAF4
oklch(93.5% 0.015 257.2)
-
Step 200
200
#CDDAED
oklch(88.4% 0.03 257.8)
-
Step 300
300
#ABC3E3
oklch(81% 0.052 255.7)
-
Step 400
400
#7EA3D5
oklch(70.7% 0.084 256.1)
-
Step 500
500 (this color)
#618FCE
oklch(64.4% 0.108 256.5)
-
Step 600
600
#4374B7
oklch(55.6% 0.118 256.7)
-
Step 700
700
#35619D
oklch(49.1% 0.108 256.7)
-
Step 800
800
#2C4F7F
oklch(42.6% 0.09 256.7)
-
Step 900
900
#284266
oklch(37.6% 0.07 256.8)
-
Step 950
950
#18273C
oklch(27% 0.044 256.9)
#618FCE 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) | #7693D1 | 0.028 |
| Deuteranopia (no green cones) | #6888CD | 0.019 |
| Tritanopia (no blue cones) | #259DA5 | 0.096 |
| Achromatopsia (no color) | #8D8D8D | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #618FCE
#618FCE
oklch(64.4% 0.108 256.5)
- #B28439
#B28439
oklch(64.4% 0.107 76.8)
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 #618FCE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.028
- Dark Sky Blue #448EE4 ΔE 0.042
- Cornflower Blue #6495ED ΔE 0.047
- Soft Blue #6488EA ΔE 0.050
- Chefchaouen Blue #4895EF ΔE 0.051
- Cool Blue #4984B8 ΔE 0.051
- Dusty Blue #5A86AD ΔE 0.053
- Off Blue #5684AE ΔE 0.055
Use #618FCE 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.