#30719D
Closest named color: Muted Blue (#3B719F). oklch(52.7% 0.096 241.5), rgb(48, 113, 157).
Aa
White text reads best on this color (5.28:1).
About this color
#30719D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.096 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.010 away. White text reads best on it, at 5.28:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #30719D |
| RGB | rgb(48, 113, 157) |
| HSL | hsl(204, 53%, 40%) |
| OKLCH | oklch(52.7% 0.096 241.5) |
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 #30719D | 5.28:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #30719D | 3.97:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #30719D text on white | 5.28:1 | AA | Lc 76.0 | Fine for body text |
| #30719D text on black | 3.97:1 | AA large text | Lc -25.7 | Dividers and decoration only |
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 600.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDCE8
oklch(88.6% 0.024 240.1)
-
Step 300
300
#A9C5DA
oklch(80.9% 0.042 240.5)
-
Step 400
400
#7AA6C8
oklch(70.6% 0.069 242.1)
-
Step 500
500
#5690BA
oklch(63.1% 0.088 241.5)
-
Step 600
600 (this color)
#30719D
oklch(52.7% 0.096 241.5)
-
Step 700
700
#2B668E
oklch(49% 0.089 241.5)
-
Step 800
800
#255474
oklch(42.8% 0.074 241.2)
-
Step 900
900
#23455D
oklch(37.6% 0.057 241.3)
-
Step 950
950
#152937
oklch(27.1% 0.037 240.5)
#30719D 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) | #5D719F | 0.048 |
| Deuteranopia (no green cones) | #4E679C | 0.038 |
| Tritanopia (no blue cones) | #007C80 | 0.068 |
| Achromatopsia (no color) | #6C6C6C | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #30719D
#30719D
oklch(52.7% 0.096 241.5)
- #925D2A
#925D2A
oklch(52.7% 0.096 61.9)
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 #30719D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.010
- Ocean Blue #03719C ΔE 0.020
- Flat Blue #3C73A8 ΔE 0.022
- Sea Blue #047495 ΔE 0.026
- Dull Blue #49759C ΔE 0.028
- Nice Blue #107AB0 ΔE 0.035
- Cerulean #457B9D ΔE 0.038
- French Blue #436BAD ΔE 0.038
Use #30719D 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.