#73A7DB
Closest named color: Greyblue (#77A1B5). oklch(71.2% 0.094 249.3), rgb(115, 167, 219).
Aa
Black text reads best on this color (8.27:1).
About this color
#73A7DB is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.094 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.054 away. Black text reads best on it, at 8.27:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.27:1 |
| White text | 2.53:1 |
Values
| HEX | #73A7DB |
| RGB | rgb(115, 167, 219) |
| HSL | hsl(210, 59%, 65%) |
| OKLCH | oklch(71.2% 0.094 249.3) |
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 #73A7DB | 2.53:1 | Fails | Lc -54.7 | Large or bold text, headings |
| Black text on #73A7DB | 8.27:1 | AAA | Lc 54.4 | Large or bold text, headings |
| #73A7DB text on white | 2.53:1 | Fails | Lc 49.6 | Large or bold text, headings |
| #73A7DB text on black | 8.27:1 | AAA | Lc -52.3 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DBEE
oklch(88.4% 0.033 249.6)
-
Step 300
300
#A4C4E6
oklch(80.8% 0.059 250.1)
-
Step 400
400 (this color)
#73A7DB
oklch(71.2% 0.094 249.3)
-
Step 500
500
#4A8ECF
oklch(63.1% 0.12 249.3)
-
Step 600
600
#2877BC
oklch(55.6% 0.131 249.1)
-
Step 700
700
#1A64A2
oklch(49.2% 0.121 248.9)
-
Step 800
800
#195283
oklch(42.8% 0.1 248.7)
-
Step 900
900
#1C4469
oklch(37.7% 0.078 249.1)
-
Step 950
950
#11283E
oklch(27% 0.05 249.3)
#73A7DB 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) | #92A8DD | 0.037 |
| Deuteranopia (no green cones) | #859EDA | 0.030 |
| Tritanopia (no blue cones) | #45B3B9 | 0.080 |
| Achromatopsia (no color) | #A3A3A3 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73A7DB
#73A7DB
oklch(71.2% 0.094 249.3)
- #C9975F
#C9975F
oklch(71.2% 0.094 68.5)
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 #73A7DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.054
- Bluegrey #85A3B2 ΔE 0.060
- Bluey Grey #89A0B0 ΔE 0.063
- Cornflower Blue #6495ED ΔE 0.065
- Carolina Blue #8AB8FE ΔE 0.069
- Cool Gray #8D99AE ΔE 0.069
- Cool Steel #97A7B3 ΔE 0.070
- Periwinkle Blue #8F99FB ΔE 0.075
Use #73A7DB 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.