#619DCC
Closest named color: Greyblue (#77A1B5). oklch(67.4% 0.094 243.4), rgb(97, 157, 204).
Aa
Black text reads best on this color (7.20:1).
About this color
#619DCC is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.094 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.045 away. Black text reads best on it, at 7.20:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.20:1 |
| White text | 2.91:1 |
Values
| HEX | #619DCC |
| RGB | rgb(97, 157, 204) |
| HSL | hsl(206, 51%, 59%) |
| OKLCH | oklch(67.4% 0.094 243.4) |
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 #619DCC | 2.91:1 | Fails | Lc -60.7 | Content text, not long reading |
| Black text on #619DCC | 7.20:1 | AAA | Lc 48.6 | Large or bold text, headings |
| #619DCC text on white | 2.91:1 | Fails | Lc 55.4 | Large or bold text, headings |
| #619DCC text on black | 7.20:1 | AAA | Lc -46.4 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEE
oklch(88.5% 0.033 245.3)
-
Step 300
300
#A1C6E4
oklch(81% 0.058 243)
-
Step 400
400 (this color)
#619DCC
oklch(67.4% 0.094 243.4)
-
Step 500
500
#3E90CC
oklch(63% 0.12 243.7)
-
Step 600
600
#117AB9
oklch(55.7% 0.13 243.2)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#085381
oklch(42.6% 0.101 243.7)
-
Step 900
900
#144568
oklch(37.6% 0.079 244.1)
-
Step 950
950
#0E293D
oklch(27.1% 0.05 243.6)
#619DCC 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) | #899DCE | 0.046 |
| Deuteranopia (no green cones) | #7B92CB | 0.039 |
| Tritanopia (no blue cones) | #22A8AD | 0.077 |
| Achromatopsia (no color) | #979797 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #619DCC
#619DCC
oklch(67.4% 0.094 243.4)
- #BF8A57
#BF8A57
oklch(67.4% 0.093 64)
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 #619DCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.045
- Faded Blue #658CBB ΔE 0.048
- Cornflower Blue #6495ED ΔE 0.059
- Silver Lake Blue #778DA9 ΔE 0.060
- Bluegrey #85A3B2 ΔE 0.061
- Bluey Grey #89A0B0 ΔE 0.062
- Cool Gray #8D99AE ΔE 0.063
- Chefchaouen Blue #4895EF ΔE 0.065
Use #619DCC 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.