#1A7DAF
Closest named color: Nice Blue (#107AB0). oklch(56% 0.115 237.3), rgb(26, 125, 175).
Aa
Black text reads best on this color (4.59:1).
About this color
#1A7DAF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.115 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.010 away. Black text reads best on it, at 4.59:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.59:1 |
| White text | 4.56:1 |
Values
| HEX | #1A7DAF |
| RGB | rgb(26, 125, 175) |
| HSL | hsl(200, 74%, 39%) |
| OKLCH | oklch(56% 0.115 237.3) |
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 #1A7DAF | 4.56:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #1A7DAF | 4.59:1 | AA | Lc 32.8 | Non-text elements, placeholder text |
| #1A7DAF text on white | 4.56:1 | AA | Lc 71.3 | Content text, not long reading |
| #1A7DAF text on black | 4.59:1 | AA | Lc -30.4 | 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 600.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C8DCEA
oklch(88.4% 0.029 238.3)
-
Step 300
300
#A2C6DE
oklch(80.8% 0.051 237.5)
-
Step 400
400
#6DA9CE
oklch(70.8% 0.083 236.7)
-
Step 500
500
#4292C1
oklch(63% 0.105 237.5)
-
Step 600
600 (this color)
#1A7DAF
oklch(56% 0.115 237.3)
-
Step 700
700
#046895
oklch(49.1% 0.106 237.3)
-
Step 800
800
#0D5579
oklch(42.7% 0.088 237.4)
-
Step 900
900
#164661
oklch(37.6% 0.069 237.5)
-
Step 950
950
#0F2939
oklch(26.9% 0.044 238.4)
#1A7DAF 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) | #657DB1 | 0.064 |
| Deuteranopia (no green cones) | #5170AE | 0.051 |
| Tritanopia (no blue cones) | #008A8E | 0.074 |
| Achromatopsia (no color) | #767676 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A7DAF
#1A7DAF
oklch(56% 0.115 237.3)
- #A66126
#A66126
oklch(56% 0.115 57.3)
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 #1A7DAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.010
- Flat Blue #3C73A8 ΔE 0.032
- Steel Blue #4682B4 ΔE 0.036
- Windows Blue #3778BF ΔE 0.036
- Cerulean #457B9D ΔE 0.037
- Blue NCS #118AB2 ΔE 0.037
- Muted Blue #3B719F ΔE 0.039
- Dull Blue #49759C ΔE 0.041
Use #1A7DAF 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.