#618ECF
Closest named color: Faded Blue (#658CBB). oklch(64.2% 0.11 257.6), rgb(97, 142, 207).
Aa
Black text reads best on this color (6.27:1).
About this color
#618ECF is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.110 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.030 away. Black text reads best on it, at 6.27:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.27:1 |
| White text | 3.34:1 |
Values
| HEX | #618ECF |
| RGB | rgb(97, 142, 207) |
| HSL | hsl(215, 53%, 60%) |
| OKLCH | oklch(64.2% 0.11 257.6) |
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 #618ECF | 3.34:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #618ECF | 6.27:1 | AA | Lc 43.3 | Non-text elements, placeholder text |
| #618ECF text on white | 3.34:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #618ECF 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
#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
#ABC2E4
oklch(80.8% 0.054 258)
-
Step 400
400
#7FA2D6
oklch(70.6% 0.086 258.1)
-
Step 500
500 (this color)
#618ECF
oklch(64.2% 0.11 257.6)
-
Step 600
600
#4473B8
oklch(55.5% 0.12 257.9)
-
Step 700
700
#35619F
oklch(49.2% 0.111 257.3)
-
Step 800
800
#2D4F81
oklch(42.7% 0.093 258)
-
Step 900
900
#284267
oklch(37.7% 0.071 257.3)
-
Step 950
950
#18273C
oklch(27% 0.044 256.9)
#618ECF 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) | #7492D2 | 0.026 |
| Deuteranopia (no green cones) | #6788CE | 0.017 |
| Tritanopia (no blue cones) | #249CA5 | 0.097 |
| Achromatopsia (no color) | #8C8C8C | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #618ECF
#618ECF
oklch(64.2% 0.11 257.6)
- #B28335
#B28335
oklch(64.2% 0.11 77)
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 #618ECF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.030
- Dark Sky Blue #448EE4 ΔE 0.040
- Cornflower Blue #6495ED ΔE 0.046
- Soft Blue #6488EA ΔE 0.047
- Chefchaouen Blue #4895EF ΔE 0.050
- Cool Blue #4984B8 ΔE 0.051
- Dusty Blue #5A86AD ΔE 0.054
- Off Blue #5684AE ΔE 0.055
Use #618ECF 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.