#73B0DA
Closest named color: Greyblue (#77A1B5). oklch(73.2% 0.088 239.6), rgb(115, 176, 218).
Aa
Black text reads best on this color (8.95:1).
About this color
#73B0DA is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.088 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.058 away. Black text reads best on it, at 8.95:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.95:1 |
| White text | 2.34:1 |
Values
| HEX | #73B0DA |
| RGB | rgb(115, 176, 218) |
| HSL | hsl(204, 58%, 65%) |
| OKLCH | oklch(73.2% 0.088 239.6) |
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 #73B0DA | 2.34:1 | Fails | Lc -51.1 | Large or bold text, headings |
| Black text on #73B0DA | 8.95:1 | AAA | Lc 57.8 | Large or bold text, headings |
| #73B0DA text on white | 2.34:1 | Fails | Lc 46.1 | Large or bold text, headings |
| #73B0DA text on black | 8.95:1 | AAA | Lc -55.9 | 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
#E1ECF4
oklch(93.7% 0.016 239.1)
-
Step 200
200
#C8DCEC
oklch(88.4% 0.031 242)
-
Step 300
300
#A1C6E1
oklch(80.9% 0.055 240)
-
Step 400
400 (this color)
#73B0DA
oklch(73.2% 0.088 239.6)
-
Step 500
500
#3E92C6
oklch(63.1% 0.112 239.3)
-
Step 600
600
#107BB3
oklch(55.6% 0.122 239.8)
-
Step 700
700
#006799
oklch(49% 0.112 240)
-
Step 800
800
#07557D
oklch(42.8% 0.094 239.4)
-
Step 900
900
#144664
oklch(37.7% 0.073 239.6)
-
Step 950
950
#0E293B
oklch(27% 0.047 240.8)
#73B0DA 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) | #9DAFDC | 0.049 |
| Deuteranopia (no green cones) | #90A4D9 | 0.043 |
| Tritanopia (no blue cones) | #43BBBE | 0.071 |
| Achromatopsia (no color) | #A9A9A9 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73B0DA
#73B0DA
oklch(73.2% 0.088 239.6)
- #D29B6F
#D29B6F
oklch(73.2% 0.088 59.5)
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 #73B0DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.058
- Bluegrey #85A3B2 ΔE 0.060
- Carolina Blue #8AB8FE ΔE 0.061
- Light Grey Blue #9DBCD4 ΔE 0.063
- Cool Steel #97A7B3 ΔE 0.064
- Bluey Grey #89A0B0 ΔE 0.065
- Light Cornflower Blue #98C1D9 ΔE 0.067
- Vivid Sky Blue #4CC9F0 ΔE 0.068
Use #73B0DA 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.