#1E71A8
Closest named color: Ocean Blue (#03719C). oklch(52.8% 0.115 243.3), rgb(30, 113, 168).
Aa
White text reads best on this color (5.27:1).
About this color
#1E71A8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.115 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.022 away. White text reads best on it, at 5.27:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 3.98:1 |
| White text | 5.27:1 |
Values
| HEX | #1E71A8 |
| RGB | rgb(30, 113, 168) |
| HSL | hsl(204, 70%, 39%) |
| OKLCH | oklch(52.8% 0.115 243.3) |
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 #1E71A8 | 5.27:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #1E71A8 | 3.98:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #1E71A8 text on white | 5.27:1 | AA | Lc 75.8 | Fine for body text |
| #1E71A8 text on black | 3.98:1 | AA large text | Lc -25.9 | 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
#CADCEB
oklch(88.6% 0.028 243.1)
-
Step 300
300
#A5C5E0
oklch(80.9% 0.052 243.9)
-
Step 400
400
#72A7D1
oklch(70.7% 0.083 243.2)
-
Step 500
500
#4B90C5
oklch(63.1% 0.106 243.9)
-
Step 600
600 (this color)
#1E71A8
oklch(52.8% 0.115 243.3)
-
Step 700
700
#1A6698
oklch(49.1% 0.107 243.2)
-
Step 800
800
#19537B
oklch(42.6% 0.089 243.4)
-
Step 900
900
#1C4563
oklch(37.6% 0.069 243.3)
-
Step 950
950
#12293A
oklch(27.1% 0.043 242.6)
#1E71A8 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) | #5773AA | 0.052 |
| Deuteranopia (no green cones) | #4466A7 | 0.039 |
| Tritanopia (no blue cones) | #007F85 | 0.080 |
| Achromatopsia (no color) | #6C6C6C | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E71A8
#1E71A8
oklch(52.8% 0.115 243.3)
- #995A0D
#995A0D
oklch(52.8% 0.116 63.2)
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 #1E71A8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.022
- Flat Blue #3C73A8 ΔE 0.023
- Muted Blue #3B719F ΔE 0.024
- Nice Blue #107AB0 ΔE 0.026
- Mid Blue #276AB3 ΔE 0.029
- French Blue #436BAD ΔE 0.033
- Sea Blue #047495 ΔE 0.036
- Dull Blue #49759C ΔE 0.042
Use #1E71A8 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.