#618FCD
Closest named color: Faded Blue (#658CBB). oklch(64.3% 0.106 256.2), rgb(97, 143, 205).
Aa
Black text reads best on this color (6.31:1).
About this color
#618FCD is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.106 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.027 away. Black text reads best on it, at 6.31:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.31:1 |
| White text | 3.32:1 |
Values
| HEX | #618FCD |
| RGB | rgb(97, 143, 205) |
| HSL | hsl(214, 52%, 59%) |
| OKLCH | oklch(64.3% 0.106 256.2) |
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 #618FCD | 3.32:1 | AA large text | Lc -66.0 | Content text, not long reading |
| Black text on #618FCD | 6.31:1 | AA | Lc 43.6 | Non-text elements, placeholder text |
| #618FCD text on white | 3.32:1 | AA large text | Lc 60.5 | Content text, not long reading |
| #618FCD text on black | 6.31:1 | AA | Lc -41.2 | 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
#7EA3D4
oklch(70.7% 0.083 255.6)
-
Step 500
500 (this color)
#618FCD
oklch(64.3% 0.106 256.2)
-
Step 600
600
#4374B6
oklch(55.6% 0.116 256.4)
-
Step 700
700
#35619C
oklch(49% 0.107 256.3)
-
Step 800
800
#2C507F
oklch(42.8% 0.089 255.8)
-
Step 900
900
#284266
oklch(37.6% 0.07 256.8)
-
Step 950
950
#18273C
oklch(27% 0.044 256.9)
#618FCD 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) | #7693D0 | 0.028 |
| Deuteranopia (no green cones) | #6988CC | 0.020 |
| Tritanopia (no blue cones) | #279DA5 | 0.094 |
| Achromatopsia (no color) | #8D8D8D | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #618FCD
#618FCD
oklch(64.3% 0.106 256.2)
- #B2843A
#B2843A
oklch(64.4% 0.107 76.6)
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 #618FCD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.027
- Dark Sky Blue #448EE4 ΔE 0.043
- Cornflower Blue #6495ED ΔE 0.048
- Cool Blue #4984B8 ΔE 0.050
- Dusty Blue #5A86AD ΔE 0.052
- Soft Blue #6488EA ΔE 0.052
- Chefchaouen Blue #4895EF ΔE 0.052
- Off Blue #5684AE ΔE 0.054
Use #618FCD 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.