#618DC1
Closest named color: Faded Blue (#658CBB). oklch(63.3% 0.093 253.3), rgb(97, 141, 193).
Aa
Black text reads best on this color (6.08:1).
About this color
#618DC1 is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.093 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.009 away. Black text reads best on it, at 6.08:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.08:1 |
| White text | 3.44:1 |
Values
| HEX | #618DC1 |
| RGB | rgb(97, 141, 193) |
| HSL | hsl(213, 44%, 57%) |
| OKLCH | oklch(63.3% 0.093 253.3) |
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 #618DC1 | 3.44:1 | AA large text | Lc -67.4 | Content text, not long reading |
| Black text on #618DC1 | 6.08:1 | AA | Lc 42.1 | Non-text elements, placeholder text |
| #618DC1 text on white | 3.44:1 | AA large text | Lc 61.9 | Content text, not long reading |
| #618DC1 text on black | 6.08:1 | AA | Lc -39.8 | 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
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CEDBEA
oklch(88.6% 0.025 251.9)
-
Step 300
300
#ADC3DE
oklch(80.9% 0.045 253.6)
-
Step 400
400
#81A4CD
oklch(70.8% 0.072 252.8)
-
Step 500
500 (this color)
#618DC1
oklch(63.3% 0.093 253.3)
-
Step 600
600
#4676AD
oklch(55.7% 0.101 253)
-
Step 700
700
#386394
oklch(49.2% 0.093 252.9)
-
Step 800
800
#2F5178
oklch(42.8% 0.076 253)
-
Step 900
900
#2A4361
oklch(37.7% 0.06 253.7)
-
Step 950
950
#192739
oklch(26.9% 0.039 255.1)
#618DC1 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) | #788FC3 | 0.029 |
| Deuteranopia (no green cones) | #6D86C0 | 0.022 |
| Tritanopia (no blue cones) | #34999F | 0.081 |
| Achromatopsia (no color) | #8A8A8A | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #618DC1
#618DC1
oklch(63.3% 0.093 253.3)
- #AC8147
#AC8147
oklch(63.3% 0.092 73.1)
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 #618DC1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.009
- Dusty Blue #5A86AD ΔE 0.035
- Off Blue #5684AE ΔE 0.038
- Cool Blue #4984B8 ΔE 0.039
- Silver Lake Blue #778DA9 ΔE 0.043
- Steel Blue #4682B4 ΔE 0.047
- Blue Grey #758DA3 ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.057
Use #618DC1 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.