#4971AE
Closest named color: Flat Blue (#3C73A8). oklch(54.7% 0.106 258.6), rgb(73, 113, 174).
Aa
White text reads best on this color (4.93:1).
About this color
#4971AE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.106 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Flat Blue (#3C73A8), ΔE 0.018 away. White text reads best on it, at 4.93:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.25:1 |
| White text | 4.93:1 |
Values
| HEX | #4971AE |
| RGB | rgb(73, 113, 174) |
| HSL | hsl(216, 41%, 48%) |
| OKLCH | oklch(54.7% 0.106 258.6) |
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 #4971AE | 4.93:1 | AA | Lc -79.4 | Fine for body text |
| Black text on #4971AE | 4.25:1 | AA large text | Lc 30.1 | Non-text elements, placeholder text |
| #4971AE text on white | 4.93:1 | AA | Lc 74.0 | Content text, not long reading |
| #4971AE text on black | 4.25:1 | AA large text | Lc -27.7 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CFDAEB
oklch(88.5% 0.026 259)
-
Step 300
300
#AEC2E0
oklch(80.9% 0.048 258.4)
-
Step 400
400
#84A2D0
oklch(70.7% 0.076 258.8)
-
Step 500
500
#658AC4
oklch(63% 0.097 259.1)
-
Step 600
600 (this color)
#4971AE
oklch(54.7% 0.106 258.6)
-
Step 700
700
#3D6198
oklch(49.2% 0.098 258.6)
-
Step 800
800
#324F7B
oklch(42.6% 0.081 258.5)
-
Step 900
900
#2C4263
oklch(37.7% 0.063 258.3)
-
Step 950
950
#1A273A
oklch(27% 0.04 257.8)
#4971AE 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) | #5875B1 | 0.022 |
| Deuteranopia (no green cones) | #4B6CAD | 0.014 |
| Tritanopia (no blue cones) | #007F87 | 0.094 |
| Achromatopsia (no color) | #707070 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4971AE
#4971AE
oklch(54.7% 0.106 258.6)
- #926816
#926816
oklch(54.7% 0.106 78.5)
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 #4971AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.018
- French Blue #436BAD ΔE 0.019
- Muted Blue #3B719F ΔE 0.029
- Windows Blue #3778BF ΔE 0.031
- Dull Blue #49759C ΔE 0.034
- Mid Blue #276AB3 ΔE 0.040
- Nice Blue #107AB0 ΔE 0.041
- Cerulean #457B9D ΔE 0.045
Use #4971AE 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.