#1D82E8
Closest named color: Clear Blue (#247AFD). oklch(60.6% 0.177 253.6), rgb(29, 130, 232).
Aa
Black text reads best on this color (5.41:1).
About this color
#1D82E8 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.177 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.039 away. Black text reads best on it, at 5.41:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.41:1 |
| White text | 3.88:1 |
Values
| HEX | #1D82E8 |
| RGB | rgb(29, 130, 232) |
| HSL | hsl(210, 82%, 51%) |
| OKLCH | oklch(60.6% 0.177 253.6) |
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 #1D82E8 | 3.88:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #1D82E8 | 5.41:1 | AA | Lc 38.4 | Non-text elements, placeholder text |
| #1D82E8 text on white | 3.88:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #1D82E8 text on black | 5.41:1 | AA | Lc -36.0 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C4DCF9
oklch(88.6% 0.048 253.2)
-
Step 300
300
#9AC4F8
oklch(80.9% 0.087 254.1)
-
Step 400
400
#5EA4F5
oklch(70.8% 0.139 253.3)
-
Step 500
500 (this color)
#1D82E8
oklch(60.6% 0.177 253.6)
-
Step 600
600
#0072D6
oklch(55.6% 0.176 253.8)
-
Step 700
700
#0060B5
oklch(49.2% 0.155 253.6)
-
Step 800
800
#004E96
oklch(42.7% 0.135 253.8)
-
Step 900
900
#03417C
oklch(37.6% 0.115 253.5)
-
Step 950
950
#072749
oklch(27.1% 0.073 253.3)
#1D82E8 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) | #4C8BEC | 0.042 |
| Deuteranopia (no green cones) | #1E79E6 | 0.024 |
| Tritanopia (no blue cones) | #009BAA | 0.132 |
| Achromatopsia (no color) | #818181 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D82E8
#1D82E8
oklch(60.6% 0.177 253.6)
- #AF7400
#AF7400
oklch(60.6% 0.129 73.8)
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 #1D82E8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.039
- Dark Sky Blue #448EE4 ΔE 0.044
- Dodger Blue #1E90FF ΔE 0.047
- Water Blue #0E87CC ΔE 0.048
- Cerulean Blue #056EEE ΔE 0.055
- Soft Blue #6488EA ΔE 0.060
- Chefchaouen Blue #4895EF ΔE 0.062
- Royal Blue #4169E1 ΔE 0.063
Use #1D82E8 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.