#618EB4
Closest named color: Faded Blue (#658CBB). oklch(62.9% 0.076 244.9), rgb(97, 142, 180).
Aa
Black text reads best on this color (6.03:1).
About this color
#618EB4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.076 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.014 away. Black text reads best on it, at 6.03:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.03:1 |
| White text | 3.47:1 |
Values
| HEX | #618EB4 |
| RGB | rgb(97, 142, 180) |
| HSL | hsl(207, 36%, 54%) |
| OKLCH | oklch(62.9% 0.076 244.9) |
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 #618EB4 | 3.47:1 | AA large text | Lc -67.7 | Content text, not long reading |
| Black text on #618EB4 | 6.03:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #618EB4 text on white | 3.47:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #618EB4 text on black | 6.03:1 | AA | Lc -39.4 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CEDBE6
oklch(88.5% 0.021 243.4)
-
Step 300
300
#ADC4D7
oklch(80.9% 0.037 243.1)
-
Step 400
400
#82A5C4
oklch(70.7% 0.06 245.5)
-
Step 500
500 (this color)
#618EB4
oklch(62.9% 0.076 244.9)
-
Step 600
600
#4778A0
oklch(55.5% 0.082 244.7)
-
Step 700
700
#396589
oklch(49.1% 0.076 244.9)
-
Step 800
800
#2F526F
oklch(42.5% 0.063 245.1)
-
Step 900
900
#2A445A
oklch(37.6% 0.05 245.2)
-
Step 950
950
#192835
oklch(27% 0.032 245.5)
#618EB4 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) | #7E8EB6 | 0.036 |
| Deuteranopia (no green cones) | #7386B3 | 0.029 |
| Tritanopia (no blue cones) | #3E979B | 0.063 |
| Achromatopsia (no color) | #898989 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #618EB4
#618EB4
oklch(62.9% 0.076 244.9)
- #A97F57
#A97F57
oklch(62.8% 0.076 64.3)
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 #618EB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.014
- Dusty Blue #5A86AD ΔE 0.025
- Silver Lake Blue #778DA9 ΔE 0.029
- Off Blue #5684AE ΔE 0.032
- Blue Grey #758DA3 ΔE 0.033
- Cool Blue #4984B8 ΔE 0.042
- Light Slate Gray #778899 ΔE 0.045
- Steel Blue #4682B4 ΔE 0.048
Use #618EB4 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.