#5784CD
Closest named color: Cool Blue (#4984B8). oklch(61.4% 0.122 259.7), rgb(87, 132, 205).
Aa
Black text reads best on this color (5.58:1).
About this color
#5784CD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.122 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.037 away. Black text reads best on it, at 5.58:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.58:1 |
| White text | 3.75:1 |
Values
| HEX | #5784CD |
| RGB | rgb(87, 132, 205) |
| HSL | hsl(217, 54%, 57%) |
| OKLCH | oklch(61.4% 0.122 259.7) |
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 #5784CD | 3.75:1 | AA large text | Lc -70.5 | Content text, not long reading |
| Black text on #5784CD | 5.58:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #5784CD text on white | 3.75:1 | AA large text | Lc 65.0 | Content text, not long reading |
| #5784CD text on black | 5.58:1 | AA | Lc -36.7 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CDDAF0
oklch(88.5% 0.033 261)
-
Step 300
300
#AAC2E8
oklch(80.9% 0.06 259.5)
-
Step 400
400
#7DA2DC
oklch(70.8% 0.095 259.2)
-
Step 500
500 (this color)
#5784CD
oklch(61.4% 0.122 259.7)
-
Step 600
600
#4272C0
oklch(55.7% 0.132 259.6)
-
Step 700
700
#345FA6
oklch(49.1% 0.124 259.9)
-
Step 800
800
#2B4E86
oklch(42.7% 0.102 259.4)
-
Step 900
900
#27416B
oklch(37.6% 0.079 259.6)
-
Step 950
950
#17263F
oklch(26.9% 0.051 260.2)
#5784CD 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) | #668AD0 | 0.025 |
| Deuteranopia (no green cones) | #577FCB | 0.013 |
| Tritanopia (no blue cones) | #00949F | 0.107 |
| Achromatopsia (no color) | #848484 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5784CD
#5784CD
oklch(61.4% 0.122 259.7)
- #AB7B14
#AB7B14
oklch(61.5% 0.122 79.8)
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 #5784CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.037
- Dark Sky Blue #448EE4 ΔE 0.040
- Faded Blue #658CBB ΔE 0.043
- Steel Blue #4682B4 ΔE 0.044
- Water Blue #0E87CC ΔE 0.045
- Soft Blue #6488EA ΔE 0.047
- Off Blue #5684AE ΔE 0.048
- Dusty Blue #5A86AD ΔE 0.051
Use #5784CD 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.