#1E72AA
Closest named color: Flat Blue (#3C73A8). oklch(53.1% 0.117 243.5), rgb(30, 114, 170).
Aa
White text reads best on this color (5.19:1).
About this color
#1E72AA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.117 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Flat Blue (#3C73A8), ΔE 0.022 away. White text reads best on it, at 5.19:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.04:1 |
| White text | 5.19:1 |
Values
| HEX | #1E72AA |
| RGB | rgb(30, 114, 170) |
| HSL | hsl(204, 70%, 39%) |
| OKLCH | oklch(53.1% 0.117 243.5) |
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 #1E72AA | 5.19:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #1E72AA | 4.04:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #1E72AA text on white | 5.19:1 | AA | Lc 75.3 | Fine for body text |
| #1E72AA text on black | 4.04:1 | AA large text | Lc -26.4 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#C9DCEB
oklch(88.5% 0.029 241.6)
-
Step 300
300
#A4C5E1
oklch(80.9% 0.053 244.1)
-
Step 400
400
#72A7D1
oklch(70.7% 0.083 243.2)
-
Step 500
500
#4A90C5
oklch(63.1% 0.107 243.5)
-
Step 600
600 (this color)
#1E72AA
oklch(53.1% 0.117 243.5)
-
Step 700
700
#196699
oklch(49.1% 0.108 243.5)
-
Step 800
800
#18537C
oklch(42.6% 0.09 243.7)
-
Step 900
900
#1C4564
oklch(37.7% 0.07 244.2)
-
Step 950
950
#11293A
oklch(27% 0.044 241.7)
#1E72AA 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) | #5874AC | 0.053 |
| Deuteranopia (no green cones) | #4467A9 | 0.039 |
| Tritanopia (no blue cones) | #008086 | 0.081 |
| Achromatopsia (no color) | #6D6D6D | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E72AA
#1E72AA
oklch(53.1% 0.117 243.5)
- #9A5B0B
#9A5B0B
oklch(53.1% 0.117 63.8)
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 #1E72AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.022
- Nice Blue #107AB0 ΔE 0.023
- Muted Blue #3B719F ΔE 0.025
- Ocean Blue #03719C ΔE 0.025
- Mid Blue #276AB3 ΔE 0.029
- French Blue #436BAD ΔE 0.033
- Sea Blue #047495 ΔE 0.038
- Windows Blue #3778BF ΔE 0.041
Use #1E72AA 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.