#1975AE
Closest named color: Nice Blue (#107AB0). oklch(54% 0.12 242.5), rgb(25, 117, 174).
Aa
White text reads best on this color (5.00:1).
About this color
#1975AE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.120 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.014 away. White text reads best on it, at 5.00:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.19:1 |
| White text | 5.00:1 |
Values
| HEX | #1975AE |
| RGB | rgb(25, 117, 174) |
| HSL | hsl(203, 75%, 39%) |
| OKLCH | oklch(54% 0.12 242.5) |
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 #1975AE | 5.00:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #1975AE | 4.19:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #1975AE text on white | 5.00:1 | AA | Lc 74.1 | Content text, not long reading |
| #1975AE text on black | 4.19:1 | AA large text | Lc -27.6 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C9DCEC
oklch(88.5% 0.03 243.4)
-
Step 300
300
#A3C5E1
oklch(80.8% 0.054 243.3)
-
Step 400
400
#6FA7D2
oklch(70.6% 0.086 242.5)
-
Step 500
500
#4591C7
oklch(63.2% 0.111 242.3)
-
Step 600
600 (this color)
#1975AE
oklch(54% 0.12 242.5)
-
Step 700
700
#10669A
oklch(49% 0.112 242.7)
-
Step 800
800
#13547D
oklch(42.8% 0.092 242.2)
-
Step 900
900
#194564
oklch(37.6% 0.072 242.8)
-
Step 950
950
#10293B
oklch(27.1% 0.046 242.4)
#1975AE 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) | #5A77B0 | 0.056 |
| Deuteranopia (no green cones) | #4569AD | 0.042 |
| Tritanopia (no blue cones) | #008389 | 0.082 |
| Achromatopsia (no color) | #6F6F6F | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1975AE
#1975AE
oklch(54% 0.12 242.5)
- #9F5C0B
#9F5C0B
oklch(54% 0.12 62.2)
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 #1975AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.014
- Flat Blue #3C73A8 ΔE 0.023
- Muted Blue #3B719F ΔE 0.029
- Ocean Blue #03719C ΔE 0.031
- Mid Blue #276AB3 ΔE 0.034
- Windows Blue #3778BF ΔE 0.035
- French Blue #436BAD ΔE 0.037
- Sea Blue #047495 ΔE 0.041
Use #1975AE 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.